Relevant bibliographies by topics / Structured gratings

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Structured gratings'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Structured gratings"

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Canning, John, Nathaniel Groothoff, Kevin Cook, Cicero Martelli, Alexandre Pohl, John Holdsworth, Somnath Bandyopadhyay, and Michael Stevenson. "Gratings in Structured Optical Fibres." Laser Chemistry 2008 (December 1, 2008): 1–19. http://dx.doi.org/10.1155/2008/239417.

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Grating writing in structured optical fibres and their properties and applications are reviewed. To date, most gratings have been written in a straightforward manner into structured fibres containing a photosensitive germanosilicate step-index core. However, gratings have also been written directly into single material, structured silica fibres and into air-clad cores using two and higher-photon processes with both UV and near IR pulsed (nanosecond-femtosecond) light. Given the intrinsic-added functionality possible within a structured optical fibre, structured fibre gratings offer further capabilities for sensors, diagnostics, lasers, and devices.
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Yang, Yin Fei, Ye Cao, Zheng Rong Tong, and Xiu Feng Yang. "Experimental Study on Etched Micro-Structured Fiber Bragg Grating." Applied Mechanics and Materials 130-134 (October 2011): 4061–64. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.4061.

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Here based on the combination of Comsol and the transmission matrix of Matlab, the spectrums of etched micro-structured gratings are simulated and two different modes of etched micro-structured fiber gratings are made in experiment. Etched micro-structured fiber grating is formed by using hydrofluoric acid (HF)-based wet chemical etching or femtosecond laser etching. This can reduce the clad layer along a standard grating partly or entirely and change the transmission feature of the grating. As a result, the thinner cladding layer changes the core propagation features and thus induces a phase delay on the guided mode, leading to the formation of a defect state inside the original grating band-gap in agreement with the phase shift grating theory. The defect state is mainly influenced by three parameters: the length and depth of the perturbation and the surrounding refractive index (SRI).
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Islam, Alif, Narottam Das, and Mohammad Mohiuddin Uzzal. "A Comprehensive Study on the Impact of Various Nano-gratings on MSM-PDs for Enhancement in the Light Absorption." AIUB Journal of Science and Engineering (AJSE) 18, no. 1 (May 31, 2019): 27–34. http://dx.doi.org/10.53799/ajse.v18i1.19.

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In this paper, we have analyzed metal-semiconductor-metal photodetectors (MSM-PDs) with different nano-grating structures or shapes to improve the light absorption capacity into the device in details for high-speed communication systems and networks. The plasmonic-based MSM-PD structure demonstrates a significant improvement in light absorption capacity for the developed device compared to conventional MSM-PDs i.e., devices that have not employed the nano-gratings. The light absorption capacity of the device is varied with the variation of geometrical shapes and parameters of the nano-gratings, such as the nano-grating height, slit width and so on. These nano-grating structures are assisting in light transmission through the central slit (i.e., subwavelength apertures) efficiently, resulting in the excitation of surface plasmon polaritons (SPPs) as the incident photons interact with the nano-gratings/ nano-corrugations. This improved light transmission in the central slit along with excited SPPs results in resonant light absorption in the device. This means the light trapped inside the central slit is triggered by the SPPs to a higher order magnitude. This causes the light absorption enhancement for the device, i.e., more light is transmitted through the device instead of reflecting back to the surface. The simulation results demonstrated that the light absorption enhancement factor (LAEF) for these devices have improved dramatically due to the nano-gratings. For modeling and simulation of these devices, Opti-FDTD tool is used which is based on finite difference time domain (FDTD) method. The application of these simulated devices is in the range of 800-850-nm. The simulation results are suitable for the design of nano-structured MSM-PDs that can be used in high-speed communication systems and sensor network systems.
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Pisco, Marco, Agostino Iadicicco, Stefania Campopiano, Antonello Cutolo, and Andrea Cusano. "Structured Chirped Fiber Bragg Gratings." Journal of Lightwave Technology 26, no. 12 (June 2008): 1613–25. http://dx.doi.org/10.1109/jlt.2008.920597.

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Chen, Jin, Li Xin Tang, and Hui Long Chen. "A Novel Structured Light Pattern for One-Shot Shape Acquisition." Applied Mechanics and Materials 401-403 (September 2013): 1191–94. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.1191.

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This paper proposes a new one-shot grayscale structured lighting scheme to obtain depth data fast. Its key idea is to code the pattern using modulated sinusoidal gratings along two axes. The features used for matching are the fringe central lines of the vertical grating. The correlation of the intensity profiles is used to measure the similarity of features. Experimental results using a vision system with two cameras and a projector show that the proposed scheme is effective and efficient.
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Das, Narottam, Devanandh Chandrasekar, Mohammad Nur-E-Alam, and M. Masud K. Khan. "Light Reflection Loss Reduction by Nano-Structured Gratings for Highly Efficient Next-Generation GaAs Solar Cells." Energies 13, no. 16 (August 14, 2020): 4198. http://dx.doi.org/10.3390/en13164198.

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This paper mainly focuses on increasing the conversion efficiency of GaAs solar cells by reducing the light reflection losses. The design of nano-structured gratings and their light trapping performance are modelled and optimised by using the finite-difference time-domain (FDTD) method. The sunlight directly impinges on the solar panel or cells, then a portion of the incident sunlight reflects back to the air from the surface of the panel, thus leading to a reduction in the light absorption capacity of the solar cells. In order to proliferate the light absorption capacity of solar cells nano-grating structures are employed, as they are highly capable of capturing the incident sunlight compared to a conventional (or flat type) solar cell, which results in generating more electrical energy. In this study, we design three different types of nano-grating structures, optimise their parameters and their performance in light capturing capacity. From the simulation results, we confirm that that it is possible to reduce light reflection losses up to 27%, by using the nano-grating structures, compared to conventional type solar cells. This reduction of reflection losses helps to improve the conversion efficiency of next-generation GaAs solar cells significantly for a sustainable green Earth.
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Canning, John. "Properties of Specialist Fibres and Bragg Gratings for Optical Fiber Sensors." Journal of Sensors 2009 (2009): 1–17. http://dx.doi.org/10.1155/2009/871580.

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The advent of optical fibres based on air holes running along their entirety opens up new directions in addressing various properties relevant to sensing, including the temperature/strain challenge of optical fibre sensors. This paper looks at the measurement challenges associated with temperature and strain, examines the potentially unique functionality structured fibre designs with and without gratings open up, and briefly describes some current research directions within conventional fibre and grating technologies.
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Haslinger, S. G., N. V. Movchan, A. B. Movchan, and R. C. McPhedran. "Transmission, trapping and filtering of waves in periodically constrained elastic plates." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468, no. 2137 (August 17, 2011): 76–93. http://dx.doi.org/10.1098/rspa.2011.0318.

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The paper discusses properties of flexural waves in elastic plates constrained periodically by rigid pins. A structured interface consists of rigid pin platonic gratings parallel to each other. Although the gratings have the same periodicity, relative shifts in horizontal and vertical directions are allowed. We develop a recurrence algorithm for constructing reflection and transmission matrices required to characterize the filtering of plane waves by the structured interface with shifted gratings. The representations of scattered fields contain both propagating and evanescent terms. Special attention is given to the analysis of trapped modes which may exist within the system of rigid pin gratings. Analytical findings are accompanied by numerical examples for systems of two and three gratings. We show geometries containing three gratings in which transmission resonances have very high quality factors (around 35 000). We also show that controlled lateral shifts of three gratings can give rise to a transmission peak with a sharp central suppression region, akin to the phenomenon of electromagnetic-induced transparency.
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Wang, Ying, D. N. Wang, Minwei Yang, and C. R. Liao. "Asymmetric microhole-structured long-period fiber gratings." Sensors and Actuators B: Chemical 160, no. 1 (December 2011): 822–25. http://dx.doi.org/10.1016/j.snb.2011.08.067.

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Groothoff, N., J. Canning, E. Buckley, K. Lyttikainen, and J. Zagari. "Bragg gratings in air–silica structured fibers." Optics Letters 28, no. 4 (February 15, 2003): 233. http://dx.doi.org/10.1364/ol.28.000233.

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Dissertations / Theses on the topic "Structured gratings"

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Ishaq, I. M. "Fibre-optic long period gratings with nano-structured overlays." Thesis, Cranfield University, 2006. http://dspace.lib.cranfield.ac.uk/handle/1826/10725.

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The influence of nano-structured overlays on the properties of fibre optic Long Period Gratings (LPGs) has been investigated. The presence of overlays of thickness of order 100 m is shown to significantly alter the response of the LPG to environmental parameters, such as the surrounding refractive index. A LPG with a nano-structured overlay was observed to exhibit enhanced sensitivity to refractive indices lower than silica, and was observed to exhibit sensitivity to refractive indices greater than that of the silica cladding, not observed in the absence of the overlay. A theoretical model predicts the observed behaviour. The observation was exploited to enhance the sensitivity of a LPG based chemical concentration sensor. The response of the transmission spectrum of concatenated long period gratings (LPGs) to ' the deposition of nano-structured overlays was also investigated. Concatenated LPGs act as a Mach-Zehnder interferometer and the phase of the interference fringes that appear within the LPGs° attenuation bands were shown to be highly sensitive to the optical thickness of the overlay, for thicknesses of order 100 mn. Several devices were fabricated with increasing path lengths to demonstrate effect of overlay thickness and refractive index on the transmission spectrum of the LPG.
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Ishaq, Imran M. "Fibre optic Long Period Gratings with nano-structured overlays." Thesis, Cranfield University, 2006. http://dspace.lib.cranfield.ac.uk/handle/1826/10725.

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The influence of nano-structured overlays on the properties of fibre optic Long Period Gratings (LPGs) has been investigated. The presence of overlays of thickness of order 100 m is shown to significantly alter the response of the LPG to environmental parameters, such as the surrounding refractive index. A LPG with a nano-structured overlay was observed to exhibit enhanced sensitivity to refractive indices lower than silica, and was observed to exhibit sensitivity to refractive indices greater than that of the silica cladding, not observed in the absence of the overlay. A theoretical model predicts the observed behaviour. The observation was exploited to enhance the sensitivity of a LPG based chemical concentration sensor. The response of the transmission spectrum of concatenated long period gratings (LPGs) to ' the deposition of nano-structured overlays was also investigated. Concatenated LPGs act as a Mach-Zehnder interferometer and the phase of the interference fringes that appear within the LPGs° attenuation bands were shown to be highly sensitive to the optical thickness of the overlay, for thicknesses of order 100 mn. Several devices were fabricated with increasing path lengths to demonstrate effect of overlay thickness and refractive index on the transmission spectrum of the LPG.
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Cleary, Justin. "Surface Plasmon Hosts for Infrared Waveguides and Biosensors, and Plasmons in Gold-Black Nano-Structured Films." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3562.

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Applications of surface plasmon polaritons (SPPs) have thus far emphasized visible and near-infrared wavelengths. Extension into the long-wave infrared (LWIR) has numerous potential advantages for biosensors and waveguides, which are explored in this work. A surface plasmon resonance (SPR) biosensor that operates deep into the infrared (3-11 µm wavelengths) is potentially capable of biomolecule recognition based on both selective binding and characteristic vibrational modes. The goal is to operate such sensors at wavelengths where biological analytes are strongly differentiated by their IR absorption spectra and where the refractive index is increased by dispersion, which will provide enhanced selectivity and sensitivity. Potentially useful IR surface plasmon resonances are investigated on lamellar gratings formed from various materials with plasma frequencies in the IR wavelength range including doped semiconductors, semimetals, and conducting polymers. One outcome of this work has been the demonstration of a simple analytic formula for calculating the SPP absorption resonances in the angular reflectance spectra of gratings. It is demonstrated for Ag lamellar gratings in the 6-11 µm wavelength range. The recipe is semi-empirical, requiring knowledge of a surface-impedance modulation amplitude, which is found here by comparison to experiment as a function of the grating groove depth and the wavelength. The optimum groove depth for photon-to-SPP energy conversion was found by experiment and calculation to be ~10-15% of the wavelength. Hemicylindrical prism couplers formed from Si or Ge were investigated as IR surface plasmon couplers for the biosensor application. Strong Fabry-Perot oscillations in the angular reflectance spectra for these high index materials suggest that grating couplers will be more effective for this application in the LWIR. A variety of materials having IR plasma frequencies were investigated due to the tighter SPP mode confinement anticipated in the IR than for traditional noble metals. First doped-Si and metal silicides (Ni, Pd, Pt and Ti) were investigated due to their inherent CMOS compatibility. Rutherford backscattering spectroscopy, x-ray diffraction, scanning electron microscopy, secondary ion mass spectrometry and four point probe measurements complemented the optical characterization by ellipsometry. Calculation of propagation length and mode confinement from measured permittivities demonstrated the suitability for these materials for LWIR SPP applications. Semimetals were also investigated since their plasma frequencies are intermediate between those of doped silicon and metal silicides. The semimetal antimony, with a plasma frequency ~80 times less than that of gold was characterized. Relevant IR surface plasmon properties, including the propagation length and penetration depths for SPP fields, were determined from optical constants measured in the LWIR. Distinct resonances due to SPP generation were observed in angular reflection spectra of Sb lamellar gratings in the wavelength range of 6 to 11 µm. Though the real part of the permittivity is positive in this range, which violates the usual condition for the existence of bound SPP modes, calculations based on experimental permittivity showed that there is little to distinguish bound from unbound SPP modes for this material. The SPP mode decays exponentially away from the surface on both sides of the permittivity sign change. Water is found to broaden the IR plasmon resonances significantly at 9.25 micron wavelength where aqueous extinction is large. Much sharper resonances for water based IR SPR biosensor can be achieved in the 3.5 to 5.5 µm range. Nano-structured Au films (Au-black) were investigated as IR absorbers and possible solar cell enhancers based on surface plasmon resonance. The characteristic length scales of the structured films vary considerably as a function of deposition parameters, but the absorbance is found to be only weakly correlated with these distributions. Structured Au-black with a broad range of cluster length scales appear to be able to support multiple SPP modes with incident light coupling to the corrugated surface as seen by photoelectron emission microscopy (PEEM) and SPR experiments, supporting the hypothesis that Au-black may be a suitable material for plasmon-resonance enhancement solar-cell efficiency over the broad solar spectrum.
Ph.D.
Department of Physics
Sciences
Physics PhD
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Lowder, Tyson Lee. "Surface Relief D-Fiber Bragg Gratings for Sensing Applications." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2644.pdf.

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Khanfar, Hazem. "Polarizing Optical Devices Based on Embedded One-Dimensional Subwavelength-Structured Photonic-Crystal Layers." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/1022.

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Quarter-wave retarders (QWR) that employ total internal reflection (TIR) and interference of light in a transparent thin-film coating at the base of a prism are presented. Explicit equations that guide the optimal design are provided. The optimal refractive index and normalized thickness of QWR coatings on glass and ZnS prisms are determined as functions of the internal angle of incidence from 45o to 75o. An achromatic QWR that uses an Si3N4- coated N-BK10-Schott glass prism is also presented with retardance error of 3o over the 400-600 nm wavelength range. An iterative procedure for the design of a polarizing beam splitter (PBS) that uses a form-birefringent, subwavelength-structured, one-dimensional photonic-crystal layer (SWS 1-D PCL) embedded in a high-index cubical prism is presented. The PBS is based on index matching and total transmission for the p polarization and total internal reflection for the s polarization at the prism-PCL interface at a 45o angle of incidence. A high extinction ratio in reflection ( 50 dB) over the 4-12 μm IR spectral range is achieved using a SWS 1-D PCL of ZnTe embedded in a ZnS cube within an external field of view (FOV) of ±6.6o and in the presence of grating filling factor errors of up to ±10%. Comparable results, but with a wider field of view, are also obtained with a Ge PCL embedded in a Si prism. A design for visible spectrum (553–713 nm) PBS SWS 1-D PCL of ZnTe embedded in a ZnS cube is also presented. The PBS shows a FOV of ±7o. A circular polarizing beam splitter (CPBS) with equal throughput for p and s polarization using SWS 1-D PCL embedded in a high-index cubical prism is introduced. A dual QWR in transmission and reflection with 50–50% CPBS is designed using the PCL. Such a CPBS shows large deviation from the design point as a result of small changes in the design parameters; e.g. a change of 10% in the filling factor results in 12o shift from the 90o phase shift between p and s polarizations, which limits the practical utility of the device.
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Cetnar, John. "Full Wave Electromagnetic Simulations of Terahertz Wire Grid Polarizers and Infrared Plasmonic Wire Gratings." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1398356024.

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Greenwell, Andrew. "RIGOROUS ANALYSIS OF WAVE GUIDING AND DIFFRACTIVE INTEGRATED OPTICAL STRUCTURES." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4346.

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The realization of wavelength scale and sub-wavelength scale fabrication of integrated optical devices has led to a concurrent need for computational design tools that can accurately model electromagnetic phenomena on these length scales. This dissertation describes the physical, analytical, numerical, and software developments utilized for practical implementation of two particular frequency domain design tools: the modal method for multilayer waveguides and one-dimensional lamellar gratings and the Rigorous Coupled Wave Analysis (RCWA) for 1D, 2D, and 3D periodic optical structures and integrated optical devices. These design tools, including some novel numerical and programming extensions developed during the course of this work, were then applied to investigate the design of a few unique integrated waveguide and grating structures and the associated physical phenomena exploited by those structures. The properties and design of a multilayer, multimode waveguide-grating, guided mode resonance (GMR) filter are investigated. The multilayer, multimode GMR filters studied consist of alternating high and low refractive index layers of various thicknesses with a binary grating etched into the top layer. The separation of spectral wavelength resonances supported by a multimode GMR structure with fixed grating parameters is shown to be controllable from coarse to fine through the use of tightly controlled, but realizable, choices for multiple layer thicknesses in a two material waveguide; effectively performing the simultaneous engineering of the wavelength dispersion for multiple waveguide grating modes. This idea of simultaneous dispersion band tailoring is then used to design a multilayer, multimode GMR filter that possesses broadened angular acceptance for multiple wavelengths incident at a single angle of incidence. The effect of a steady-state linear loss or gain on the wavelength response of a GMR filter is studied. A linear loss added to the primary guiding layer of a GMR filter is shown to produce enhanced resonant absorption of light by the GMR structure. Similarly, linear gain added to the guiding layer is shown to produce enhanced resonant reflection and transmission from a GMR structure with decreased spectral line width. A combination of 2D and 3D modeling is utilized to investigate the properties of an embedded waveguide grating structure used in filtering/reflecting an incident guided mode. For the embedded waveguide grating, 2D modeling suggests the possibility of using low index periodic inclusions to create an embedded grating resonant filter, but the results of 3D RCWA modeling suggest that transverse low index periodic inclusions produce a resonant lossy cavity as opposed to a resonant reflecting mirror. A novel concept for an all-dielectric unidirectional dual grating output coupler is proposed and rigorously analyzed. A multilayer, single-mode, high and graded-index, slab waveguide is placed atop a slightly lower index substrate. The properties of the individual gratings etched into the waveguide's cover/air and substrate/air interfaces are then chosen such that no propagating diffracted orders are present in the device superstrate and only a single order is present outside the structure in the substrate. The concept produces a robust output coupler that requires neither phase-matching of the two gratings nor any resonances in the structure, and is very tolerant to potential errors in fabrication. Up to 96% coupling efficiency from the substrate-side grating is obtained over a wide range of grating properties.
Ph.D.
Optics and Photonics
Optics and Photonics
Optics PhD
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Girard, Jules. "Microscopies de fluorescense et de diffraction super-résolues par éclairement multiple." Thesis, Aix-Marseille 3, 2011. http://www.theses.fr/2011AIX30031.

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Ce travail de thèse concerne l'amélioration du pouvoir de résolution de la microscopie optique en champ lointain. Nous avons développé des techniques qui tirent profit de la relation liant le champ électromagnétique émis par un objet à l’éclairement utilisé. En utilisant plusieurs images obtenues pour différents éclairements, et à l’aide d’un algorithme d'inversion approprié, il est possible d'accéder à des fréquences spatiales de l'objet habituellement filtrées par le microscope.Ce concept est d’abord appliqué à une technique de microscopie cohérente : la tomographique optique de diffraction. Elle permet d’obtenir numériquement une carte quantitative de la permittivité diélectrique de l'objet, avec une résolution supérieure à celle d'un microscope classique, à partir de plusieurs hologrammes de l'échantillon. Dans ce cadre, nous montrons que le phénomène de diffusion multiple permet d’atteindre des résolutions encore plus spectaculaires s’il est pris en compte. Nous étudions ensuite la microscopie de fluorescence par éclairement structuré, que nous proposons d’améliorer de deux manières différentes. Dans la première, nous utilisons un algorithme d’inversion capable de retrouver simultanément la densité de fluorescence et les éclairements utilisés. Grâce à celui-ci, nous pouvons remplacer l’illumination périodique et contrôlée généralement utilisée, par des speckles aléatoires formés avec un montage remarquablement simple. Nous montrons expérimentalement l'efficacité de cette approche. Dans un second temps, nous proposons de remplacer la lamelle de verre sur laquelle est repose l’échantillon par un réseau diélectrique nanométrique. Celui-ci crée à sa surface une grille de lumière de période inférieure à la limite de diffraction, ce qui permet d’améliorer d’avantage la résolution finale de l’image reconstruite. Nous détaillons la conception, la fabrication et la caractérisation expérimentale de ce substrat nanostructuré
This PhD work focuses on the resolution improvement of far-field optical microscopy. We have studied and developed different techniques that take advantage of the relationship between the sample, the illumination and the diffracted (or emitted) field, in order to increase final band-pass of the image beyond that imposed by the diffraction phenomenon. In In these approaches, several images of the same sample are recorded under different illuminations. An inversion algorithm in then used to reconstruct a super-resolved map of the sample from the set of measurements.This concept is first applied to coherent microscopy. In tomographic diffraction microscopy, many holograms of the same unstained sample are obtained under various incidences, then used to numerically reconstruct a quantitative map of permittivity of the sample. The resolution is usually better than that of classical wide-field microscopy. We show theoretically and experimentally that, far from being a drawback, the presence of multiple scattering within the sample can, if properly accounted for, lead a to an even better resolution.We then study structured illumination fluorescence microscopy. We present two different ways for improving this method. The first one takes advantage of an inversion algorithm, which is able to retrieve the fluorescence density without knowing the illumination patterns. This algorithm permits one to replace the periodic light pattern classically used in structured illumination microscopy by unknown random speckle patterns. The implementation of the technique is thus considerably simplified while the resolution improvement remains. In the second approach, we propose to replace the coverslip on which the sample usually lays, by a sub-lambda grating. The latter is used to form, in near field, a light grid with sub-diffraction period that is able to probe the finest details of the sample. The design, fabrication and optical characterization of this key structure are detailed
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Bisaillon, Eric. "Distributed diffractive structures for micro-optical systems." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103366.

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In modern communications systems, the components supporting wavelength division for increased density are rapidly becoming small compared with the wavelength of light being manipulated. As the size of these devices shrinks there comes a point when the features of interest become smaller than the wavelength and thereby the fundamental properties of light interaction with such structures change dramatically. In these structures and materials, resonances, effective properties, and band-gaps arise and offer designers a new realm of possibilities for the design of high quality factor resonators, filters and switches.
The study of structures comprising two different scales compared with the wavelength of light promises interesting optical possibilities for future devices. In these structures a subwavelength size feature is used in conjunction with a super-wavelength size feature. This thesis will show how the resulting optical behavior for such structures arises from the combination of the sub- and super-wavelength diffractive effects.
Two application examples of these two-scale devices will be studied: the distributed echelle grating and the subwavelength based Fabry-Perot cavity. Both of these applications can be thought, of as distributed diffractive structures, a structure in which diffraction and subwavelength scale interference combine to produce high efficiency and versatile new devices.
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Ehrlich, Jeffrey Ellis. "Nonlinear grating structures in indium antimonide waveguides." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184914.

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This dissertation describes various nonlinear grating coupling phenomena in InSb waveguides. InSb exhibits an opto-thermal, diffusive nonlinearity at 9.6μm. This nonlinearity strongly modifies the growth of a guided wave via the grating coupling of an incident, Gaussian signal. In particular, optical limiting and bistability in the coupled power were demonstrated for a detuned grating coupler. The limits on the detunings were also investigated. The experimental results showed qualitative agreement with a theory based upon a diffusive nonlinearity in the grating coupling process. Also demonstrated and theoretically explained was a new form of "butterfly" bistability in the output coupled signal from a nonlinear waveguide. In this situation, nonlinear interference effects in the substrate modified the proportion of power outcoupled into the cover and the substrate. The effects of a thermal nonlinearity on the response of a distributed feedback grating (DFB) were also studied. The DFB reflection response of an incident guided wave was modified either by varying the power of the incident guided wave or that of a second guided wave. Also, the effects of the DFB reflection were shown to enhance the bistable input grating coupling process by providing an additional feedback. This enhancement resulted in a smaller incident switching power required to obtain bistability in the input coupler.
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Books on the topic "Structured gratings"

1

M, Lerner Jeremy, McKinney Wayne R, and Society of Photo-optical Instrumentation Engineers., eds. International Conference on the Application and Theory of Periodic Structures: 24-26 July 1991, San Diego, California. Bellingham, Wash: SPIE, 1991.

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M, Lerner Jeremy, Society of Photo-optical Instrumentation Engineers., and New Mexico State University. Applied Optics Laboratory., eds. International Conference on the Application and Theory of Periodic Structures, Diffraction Gratings, and Moire Phenomena III: 19-20 August 1987, San Diego, California. Bellingham, Wash., USA: SPIE, 1988.

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Parmar, Devendra S. Development of in-fiber reflective Bragg gratings as shear stress monitors in aerodynamic facilities. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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Tomasz, Jannson, and Society of Photo-optical Instrumentation Engineers., eds. Application and theory of periodic structures: 10-12 July, 1995, San Diego, California. Bellingham, Wash: SPIE, 1995.

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1963-, Lalanne Ph, and Society of Photo-optical Instrumentation Engineers., eds. Physics, theory, and applications of periodic structures in optics: 1-2 August 2001, San Diego, USA. Bellingham, Wash., USA: SPIE, 2001.

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1963-, Lalanne Ph, and Society of Photo-optical Instrumentation Engineers., eds. Physics, theory, and applications of periodic structures in optics II: 5-7 August, 2003, San Diego, California, USA. Bellingham, Wash: SPIE, 2003.

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Chen, Lawrence R. Applications of compound fiber Bragg grating structures in lightwave communications. 2000.

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Craig, Lopatin, and Langley Research Center, eds. Application of a fiber optic distributed strain sensor system to woven E-glass composite. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 2001.

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Development of in-fiber reflective Bragg gratings as shear stress monitors in aerodynamic facilities. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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Development of in-fiber reflective Bragg gratings as shear stress monitors in aerodynamic facilities. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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Book chapters on the topic "Structured gratings"

1

Kroker, Stefanie, and Thomas Siefke. "Resonant Waveguide Grating Structures." In Optical Characterization of Thin Solid Films, 341–58. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75325-6_12.

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Guemes, A. J. "Strain Measurement Inside Composite Materials by Fiber Optic Bragg Gratings." In Smart Structures, 336–51. Vienna: Springer Vienna, 2001. http://dx.doi.org/10.1007/978-3-7091-2686-8_25.

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Huang, S., M. LeBlanc, M. M. Ohn, and R. M. Measures. "Bragg Intra-Grating Structural Sensing." In Applications of Photonic Technology, 317–20. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4757-9247-8_59.

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Du, Yanliang, Baochen Sun, Jianzhi Li, and Wentao Zhang. "Fiber Bragg Grating Sensor." In Optical Fiber Sensing and Structural Health Monitoring Technology, 77–148. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2865-7_3.

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Chen, Po-Yu, and Wei-Chung Wang. "Investigation of Grating Collimation of Coherent Gradient Sensing Technique." In Structural Integrity, 84–86. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21894-2_17.

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Teng, Jing Hua, Lip Fah Chong, J. R. Dong, Soo Jin Chua, Norman Soo Seng Ang, Yan Jun Wang, and Ee Leong Lim. "Distributed Feedback Laser Using Buried Dielectric Grating." In Semiconductor Photonics: Nano-Structured Materials and Devices, 189–91. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-471-5.189.

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Matveenko, Valeriy, Grigoriy Serovaev, and Mikhail Tashkinov. "Numerical Analysis of Delamination in Composite Structures Using Strain Measurements from Fiber Bragg Gratings Sensors." In Structural Integrity, 62–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91989-8_11.

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Vacher, S., J. Molimard, A. Vautrin, H. Gagnaire, and P. Henrat. "Monitoring of Lri Process by Optical Fibre Bragg Gratings." In Experimental Analysis of Nano and Engineering Materials and Structures, 641–42. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6239-1_318.

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Evenblij, Rolf, Frank Kong, Christos Koimtzoglou, Monica Ciminello, Ignazio Dimino, and Antonio Concilio. "Shape Sensing for Morphing Structures Using Fiber Bragg Grating Technology." In Smart Intelligent Aircraft Structures (SARISTU), 471–91. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22413-8_21.

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Tamir, T., and S. Zhang. "Rigorous Guided-Wave Solutions for Planar Grating Structures." In Guided-Wave Optoelectronics, 363–70. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1039-4_43.

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Conference papers on the topic "Structured gratings"

1

Canning, J. "Structured Fibres and Gratings for Sensing." In Asia Communications and Photonics Conference and Exhibition. Washington, D.C.: OSA, 2009. http://dx.doi.org/10.1364/acp.2009.thaa1.

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Luna-Zayas, Yaoltzin, Fermín-Granados Agustín, and Alejandro Cornejo-Rodríguez. "Ronchi test with sub-structured gratings." In ICO20:Optical Design and Fabrication, edited by James Breckinridge and Yongtian Wang. SPIE, 2006. http://dx.doi.org/10.1117/12.668170.

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Wang, D. N., Ying Wang, and Minwei Yang. "Microhole-structured long period fiber grating." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/bgpp.2010.bma5.

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Canning, John. "Gratings and grating devices in structured fibres using 193nm from an ArF laser." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Washington, D.C.: OSA, 2007. http://dx.doi.org/10.1364/bgpp.2007.bwc1.

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Kalli, Kyriacos, Christian F. B. Broadway, Antreas Theodosiou, Michal Zubel, Kate Sugden, Patrice Mégret, and Christophe Caucheteur. "L-band CYTOP Bragg gratings for ultrasound sensing." In Micro-Structured and Specialty Optical Fibres, edited by Christian-Alexander Bunge, Kyriacos Kalli, and Alexis Mendez. SPIE, 2018. http://dx.doi.org/10.1117/12.2307129.

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Wolf, Alexey, Mikhail Kotyushev, Alexandr Dostovalov, and Sergey Babin. "Femtosecond core-scanning inscription of tilted fiber Bragg gratings." In Micro-Structured and Specialty Optical Fibres, edited by Christian-Alexander Bunge, Kyriacos Kalli, and Alexis Mendez. SPIE, 2018. http://dx.doi.org/10.1117/12.2307132.

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Lozano, Alexander X., Moein Shayegannia, Arthur O. Montazeri, Yuan Fang, Kaveh Moussakhani, and Nazir P. Kherani. "Light Localization in Axisymmetric Nano-Structured Plasmonic Gratings." In CLEO: Science and Innovations. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/cleo_si.2015.sth1m.5.

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Avrutsky, Ivan. "Resonant Reflection by Waveguide Gratings with Structured Period." In 2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID). IEEE, 2020. http://dx.doi.org/10.1109/rapid49481.2020.9195682.

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Chehura, Edmon, Richard P. Murphy, Stephen W. James, and Ralph P. Tatam. "Tilted Fibre Bragg Gratings With Nano-Structured Overlays." In Optical Fiber Sensors. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/ofs.2006.tue17.

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PALADINO, D., M. PISCO, A. CUTOLO, A. CUSANO, A. IADICICCO, S. CAMPOPIANO, and M. GIORDANO. "STRUCTURED FIBER BRAGG GRATINGS SENSORS: PERSPECTIVES AND CHALLENGES." In Proceedings of the 12th Italian Conference. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812833594_0057.

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Reports on the topic "Structured gratings"

1

Fernow, R. C. The grating as an accelerating structure. Office of Scientific and Technical Information (OSTI), February 1991. http://dx.doi.org/10.2172/6064000.

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Davol, Katy, Eric Udd, Steve Kreger, Marley Kunzler, Marty Laylor, Dirk Heider, and Zhicheng Yu. Monitoring of Advanced Composite Weave Structures Using Multi-Axis Fiber Grating Strain Sensors. Fort Belvoir, VA: Defense Technical Information Center, January 2003. http://dx.doi.org/10.21236/ada450833.

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Kunzler, Marley, Eric Edd, Stephen Kreger, Mont Johnson, and Vaughn Henrie. Damage Evaluation and Analysis of Composite Pressure Vessels Using Fiber Bragg Gratings to Determine Structural Health. Fort Belvoir, VA: Defense Technical Information Center, February 2005. http://dx.doi.org/10.21236/ada434026.

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Kunzler, Marley, Eric Udd, Stephen Kreger, Mont Johnson, and Vaughn Henrie. Damage Evaluation and Analysis of Composite Pressure Vessels Using Fiber Bragg Gratings to Determine Structural Health. Fort Belvoir, VA: Defense Technical Information Center, January 2005. http://dx.doi.org/10.21236/ada433776.

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Zhang, Lin. High Extinction Ratio In-Fibre Polarisers by Exploiting Tilted Fibre Bragg Grating Structures for Single-Polarisation High-Power Fibre Lasers and Amplifiers. Fort Belvoir, VA: Defense Technical Information Center, November 2009. http://dx.doi.org/10.21236/ada524631.

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