Academic literature on the topic 'A Beam of Light'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'A Beam of Light.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "A Beam of Light"

1

Quintenz, J. P., D. B. Seidel, M. L. Kiefer, T. D. Pointon, R. S. Coats, S. E. Rosenthal, T. A. Mehlhorn, M. P. Desjarlais, and N. A. Krall. "Simulation codes for light-ion diode modeling." Laser and Particle Beams 12, no. 2 (June 1994): 283–324. http://dx.doi.org/10.1017/s0263034600007746.

Full text
Abstract:
The computational tools used in the investigation of light-ion diode physics at Sandia National Laboratories are described. Applied-B ion diodes are used to generate intense beams of ions and focus these beams onto targets as part of Sandia's inertial confinement fusion program. Computer codes are used to simulate the energy storage and pulse forming sections of the accelerator and the power flow and coupling into the diode where the ion beam is generated. Other codes are used to calculate the applied magnetic field diffusion in the diode region, the electromagnetic fluctuations in the anode-cathode gap, the subsequent beam divergence, the beam propagation, and response of various beam diagnostics. These codes are described and some typical results are shown.
APA, Harvard, Vancouver, ISO, and other styles
2

Dajie Huang, Dajie Huang, Wei Fan Wei Fan, Xuechun Li Xuechun Li, and Zunqi Lin Zunqi Lin. "Beam shaping for 1 053-nm coherent light using optically addressed liquid crystal light valve." Chinese Optics Letters 10, s2 (2012): S21406–321409. http://dx.doi.org/10.3788/col201210.s21406.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Palmans, Hugo, and Stanislav M. Vatnitsky. "Beam monitor calibration in scanned light-ion beams." Medical Physics 43, no. 11 (October 5, 2016): 5835–47. http://dx.doi.org/10.1118/1.4963808.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Niu, K., P. Mulser, and L. Drska. "Beam generations of three kinds of charged particles." Laser and Particle Beams 9, no. 1 (March 1991): 149–65. http://dx.doi.org/10.1017/s0263034600002391.

Full text
Abstract:
Analyses are given for beam generations of three kinds of charged particles: electrons, light ions, and heavy ions. The electron beam oscillates in a dense plasma irradiated by a strong laser light. When the frequency of laser light is high and its intensity is large, the acceleration of oscillating electrons becomes large and the electrons radiate electromagnetic waves. As the reaction, the electrons feel a damping force, whose effect on oscillating electron motion is investigated first. Second, the electron beam induces the strong electromagnetic field by its self-induced electric current density when the electron number density is high. The induced electric field reduces the oscillation motion and deforms the beam.In the case of a light ion beam, the electrostatic field, induced by the beam charge, as well as the electromagnetic field, induced by the beam current, affects the beam motion. The total energy of the magnetic field surrounding the beam is rather small in comparison with its kinetic energy.In the case of heavy ion beams the beam charge at the leading edge is much smaller in comparison with the case of light ion beams when the heavy ion beam propagates in the background plasma. Thus, the induced electrostatic and electromagnetic fields do not much affect the beam propagation.
APA, Harvard, Vancouver, ISO, and other styles
5

Ulrich, Andreas. "Light emission from particle beam induced plasma: An overview." Laser and Particle Beams 30, no. 2 (March 13, 2012): 199–205. http://dx.doi.org/10.1017/s0263034611000838.

Full text
Abstract:
AbstractExperiments to study the light emission from plasma produced by particle beams are presented. Fundamental aspects in comparison with discharge plasma formation are discussed. It is shown that the formation of excimer molecules is an important process. This paper summarizes various studies of particle beam induced light emission and presents the first results of a direct comparison of light emission induced by electron- and ion beam excitation. Both high energy heavy ion beam and low energy electron beam experiments are described and an overview over applications in the form of light sources, lasers, and ionization devices is given.
APA, Harvard, Vancouver, ISO, and other styles
6

ZHONG, WEI-PING. "SPATIOTEMPORAL STRONGLY NONLOCAL SPHERICAL LIGHT BULLETS." Journal of Nonlinear Optical Physics & Materials 22, no. 01 (March 2013): 1350006. http://dx.doi.org/10.1142/s0218863513500069.

Full text
Abstract:
The general spherical beam solution of the three-dimensional (3D) spatiotemporal strongly nonlocal nonlinear (NN) Schrödinger equation in the form of light bullets is presented. The 3D spatiotemporal spherical beams are built by the products of generalized Laguerre polynomials and associated Legendre polynomials. By the choice of a specific integration constant, the spherical beam becomes an accessible soliton, which can exist in various forms. We confirm the existence and stability of these solutions by numerical simulations.
APA, Harvard, Vancouver, ISO, and other styles
7

Xu, Yun, Jingbo Sun, Jesse Frantz, Mikhail Shalaev, Wiktor Walasik, Apra Pandey, Jason Myers, Robel Bekele, Alexander Tsukernik, and Jasbinder Litchinitser. "Nonlinear Metasurface for Structured Light with Tunable Orbital Angular Momentum." Applied Sciences 9, no. 5 (March 6, 2019): 958. http://dx.doi.org/10.3390/app9050958.

Full text
Abstract:
Orbital angular momentum (OAM) beams may create a new paradigm for the future classical and quantum communication systems. A majority of existing OAM beam converters are bulky, slow, and cannot withstand high powers. Here, we design and experimentally demonstrate an ultra-fast, compact chalcogenide-based all-dielectric metasurface beam converter which has the ability to transform a Hermite–Gaussian (HG) beam into a beam carrying an OAM at near infrared wavelength. Depending on the input beam intensity, the topological charge carried by the output OAM beam can be switched between positive and negative. The device provides high transmission efficiency and is fabricated by a standard electron beam lithography. Arsenic trisulfide (As 2 S 3 ) chalcogenide glass (ChG) offers ultra-fast and large third-order nonlinearity as well as a low two-photon absorption coefficient in the near infrared spectral range.
APA, Harvard, Vancouver, ISO, and other styles
8

DEGIOVANNI, IVO PIETRO, STEFANIA CASTELLETTO, EMILIANO PUDDU, ALESSANDRA ANDREONI, and MARIA BONDANI. "GHOST IMAGING WITH INTENSE CORRELATED LIGHT." International Journal of Quantum Information 05, no. 01n02 (February 2007): 33–36. http://dx.doi.org/10.1142/s0219749907002499.

Full text
Abstract:
We present a new ghost-imaging experiment that is realized by exploiting two intense correlated beams. The beams involved are signal and idler of a seeded parametric downconversion. The peculiarity of this scheme is that the seed field is an intense pseudo-thermal field generated by passing a laser beam through two rotating ground glass plates.
APA, Harvard, Vancouver, ISO, and other styles
9

Bluhm, H. J., G. Keßler, and R. R. Petersen. "Light ion beam driven inertial confinement fusion: Requirements and achievements." Laser and Particle Beams 14, no. 4 (December 1996): 655–63. http://dx.doi.org/10.1017/s0263034600010375.

Full text
Abstract:
In this paper we compare the requirements for a light ion beam driven inertial confinement fusion (ICF) reactor with the present achievements in pulsed power technology, ion diode performance, beam transport, and target physics. The largest gap exists in beam quality and repetition rate capability of high-power ion diodes. Beam quality can very likely be improved to a level sufficient for driving a single-shot ignition facility, if the potential of two-stage acceleration is used. Present schemes for repetition rate ion diodes allow either too low power densities or create too large beam divergence. On the other hand, repetitively operating pulsed-power generators meeting the requirements for an ICF reactor driver can be built with present technology. Also, a rather mature target concept has been developed for indirect drive with light ion beams.
APA, Harvard, Vancouver, ISO, and other styles
10

Adli, E., S. J. Gessner, S. Corde, M. J. Hogan, and H. H. Bjerke. "Cherenkov light-based beam profiling for ultrarelativistic electron beams." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 783 (May 2015): 35–42. http://dx.doi.org/10.1016/j.nima.2015.02.003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "A Beam of Light"

1

Kumar, Nikhil P. "Light beam propagation in complex crystals." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/405772.

Full text
Abstract:
Recent advancement in Photonics have brought about a new era of miniaturisation. Along came a need for technology to allow the manipulation of light at the micrometer scale, with precise control over beam propagation. The past decades have seen numerous studies devoted to periodic nanophotonic structures, Photonic Crystals (PhCs), which brought out different temporal and spatial functionalities such as frequency bandgaps, waveguiding, or managing diffractive properties of the beam. More recently, attention was paid to equally accessible artificial nanophotonic structures, where gain and losses are modulated on the wavelength scale: Gain Loss Modulated Materials (GLMMs). Therefore, the aim of my PhD was providing a deep analysis on beam propagation in GLMMs, identifying the spatial propagation effects they held and proposing realistic scenarios in which they could be implemented, in existing and evolving technology and devices. We built our studies from a solid understanding of GLMMs of prior works performed, however, using a paraxial approximation, which reduces the predictions accuracy by excluding propagation at large angles. The methodology adopted is a combination of analytical predictions and numerical confirmation of the predicted effects. We initially investigated the high anisotropy of beam amplification/attenuation within GLMMs. As predicted by the plane wave expansion method, the propagation of light beams within such structures is sensitive to the propagation direction. We provided a numerical proof in 2D periodic Loss Modulated Materials (LMM) with square and rhombic lattice symmetry, by solving the full set of Maxwell¿s equations, using the finite difference time domain method, which entails no approximation. Anisotropy of amplification/attenuation leads to the narrowing of the angular spectrum of beams with wavevectors close to the edges of the first Brillouin Zone. The effect provides a novel tool to filter out high spatial harmonics from noisy beams, while being amplified. A later study lead us to analyse the focalisation performance of a flat LMM slab. Flat lensing was analytically predicted by the dispersion curves obtained from a coupled mode expansion of Maxwell¿s equations, and then numerically confirmed. For a range of frequencies coinciding with a high transmission window at resonant Bragg frequencies (bandgap frequencies for PhCs), light beams undergo negative (anomalous) diffraction through LMMs. The phase shifts accumulated within the structure are then compensated by normal diffraction in free space, leading to a substantial focalization beyond it. The predicted phenomena are generic for spatially modulated materials and other kinds of waves. Thus, we also discussed, for the first time, propagation in LMM acoustic crystals, predicting high angular transmission bands. While these initial studies assumed hypothetical LMM materials, in a realistic scenario, loss modulations are always accompanied by refractive index modulations, as predicted by Kramers-Kronig relations. During the final phase of my PhD, we focused on more realistic structures exhibiting both index and loss modulations, namely metallic photonic crystals (MPhCs), made of 2D rhombic arrays of metallic cylinders embedded in air. We explored their ability to tailor the spatial propagation of light beams. Indeed, MPhCs support self-collimated propagation and negative diffraction. In this later case, flat lensing was demonstrated, leading to the focalization of beams behind MPhCs slabs. Also, the anisotropic attenuation of light within MPhCs enables spatial filtering. Finally, we initiated studies towards the implementation of GLMMs as an intrinsic mechanism to improve the beam quality from Broad Area Semiconductor (BAS) amplifiers. Along the development of my PhD, we proposed, analysed and established spatial beam propagation effects in GLMM, from purely ideal LMM structures to more realistic structure as MPhCs or BAS amplifiers.
Els avenços recents en Fotònica han començat una nova era de miniaturització, apareixent la necessitat tecnològica de manipular la llum a l'escala micromètrica, amb un control precís de la propagació del feixos. Les darreres dècades han estat testimoni de nombrosos estudis dedicats a estructures periòdiques nanofotòniques, Cristalls Fotònics (PhC), amb propietats temporals i espacials, com ara bandes prohibides de freqüència, guies d'ones, o el control sobre la difracció dels feixos de llum. Més recentment, s'han considerat altres estructures artificials nanofotòniques igualment accessibles, amb guanys i pèrdues modulades a l'escala de la longitud d'ona, Materials Modulats amb Guanys i Pèrdues (GLMMs). Així, l'objectiu de la meva tesi doctoral és proporcionar una anàlisi profunda sobre la propagació dels feixos de llum en GLMMs, identificant efectes espacials i proposant escenaris reals per implementar-los, en tecnologies i dispositius ja existents o en desenvolupament. Els treball parteix d'estudis previs que proporcionen una comprensió sòlida dels GLMMs, malgrat que es basen en l'aproximació paraxial, reduint la precisió de les prediccions ja que s'exclou la propagació a angles grans. La metodologia adoptada és una combinació de prediccions analítiques i confirmació numèrica dels efectes predits. Inicialment, s'investiga l'alta anisotropia d'amplificació/atenuació de feixos dins GLMMs. Tal com es prediu amb el mètode d'expansió en ones planes, la propagació del feixos en aquestes estructures és molt sensible a la direcció; proporcionant la prova numèrica en Materials 2D amb Pèrdues Modulades (LMM) amb simetria de xarxa quadrada i romboïdal, resolent el conjunt complet de les equacions de Maxwell (mètode de diferències finites en domini temporal), sense cap aproximació. L'anisotropia de l'amplificació/atenuació redueix l'espectre angular dels feixos amb vectors d'ona propers als límits de la primera zona de Brillouin; efecte que proporciona una nova eina per filtrar harmònics espacials de feixos amb soroll, mentre s'amplifiquen. Un estudi posterior duu a analitzar la possibilitat de focalitzar amb una làmina plana LMM. L'efecte es prediu analíticament amb les corbes de dispersió (expansió en modes acoblats de les equacions de Maxwell) i es confirma numèricament. Per a un rang de freqüències dins la finestra d'alta transmissió de les freqüències ressonants de Bragg (banda prohibida per a PhC), la difracció és negativa (anòmala) a través de l'LMM. La difracció normal de l'espai lliure compensa la fase negativa acumulada en l'estructura i el feix focalitza després de la làmina. Els fenòmens predits són genèrics pels materials modulats espacialment i altres tipus d'ones. També s'estudia, per primera vegada, la propagació en cristalls acústics LMM, predient bandes angulars d'alta transmissió. Malgrat inicialment es consideren materials LMM ideals, en un escenari més realista, les modulacions de pèrdues van sempre acompanyades de modulacions d'índex de refracció segons les relacions de Kramers-Kronig. La fase final de la meva Tesi se centra en estructures més realistes tant amb modulacions d'índex com de pèrdues: cristalls fotònics metàl·lics (MPhCs), formats per distribucions periòdiques ròmbiques de cilindres metàl·lics en aire, explorant-ne la capacitat per controlar la propagació de feixos de llum. En MPhCs és possible tant la propagació col·limada com la difracció negativa. En aquest últim cas, es demostra la focalització per làmines planes de MPhCs. A més, l'atenuació anisòtropa de la llum permet el filtratge espacial. Finalment, s'explora l'aplicació dels GLMMs com a mecanisme intrínsec per millorar la qualitat dels feixos emesos per amplificadors de semiconductors (BAS). Al llarg de la meva tesi doctoral, s’han proposat, analitzat i establert mecanismes de control de la difracció de feixos de llum en GLMM, des d'estructures purament ideals LMM a més realistes com MPhCs o amplificadors BAS.
APA, Harvard, Vancouver, ISO, and other styles
2

Maigyte, Lina. "Shaping of light beams with photonic crystals : spatial filtering, beam collimation and focusing." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/277571.

Full text
Abstract:
The research developed in the framework of this PhD thesis is a theoretical, numerical and experimental study of light beam shaping (spatial filtering, beam collimation and focusing) in the visible frequency range using photonic crystal structures. Photonic crystals (PhCs) are materials with periodic, spatially modulated refractive index on the wavelength scale. They are primarily known for their chromatic dispersion properties. However, they can also modify the spatial dispersion, which allows managing the spatial properties of the monochromatic light beams. In the first part of my thesis we experimentally show that particular spatial dispersion modification in PhCs can lead to spatial (angular) filtering of light beams. The study is focused on the spatial filtering efficiency improvement by introducing chirp (the variation of longitudinal period of the structure) in the crystal structure. Additionally, to enhance the effect, we consider different geometries and materials. The work presented in this PhD thesis brings closer to reality the creation of a new generation spatial filters for micro-photonic circuits and micro-devices. The second part of the study is devoted to the theoretical, numerical and experimental analysis of the formation of negative spatial dispersion in PhCs, which gives rise to collimation and focusing effects behind the PhCs. The ideas developed in my PhD also work in lossy systems, in particular in metallic PhCs. The simulation results for metallic PhCs are presented, in which both effects- spatial filtering and beam focusing, are shown.
La recerca desenvolupada en el marc d'aquesta tesi doctoral és un estudi teòric, numèric i experimental de la modificació de la forma de feixos de llum (filtratge espacial, col·limació i focalització) en el rang visible de freqüències utilitzant estructures de cristall fotònic. Els cristalls fotònics (CFs) són materials amb una modulació periòdica de l'índex de refracció en l'escala de la longitud d'ona, i són principalment coneguts per les seves propietats relacionades amb la dispersió temporal. Tot i això, la dispersió espacial també pot ser modificada mitjançant CFs, fet que permet controlar les propietats espacials de feixos monocromàtics de llum. En la primera part de la tesi, mostrem experimentalment el fet que certes modificacions de la dispersió espacial en CFs poden donar lloc a filtratge espacial (angular) de feixos de llum. L'estudi es focalitza en la millora de l'eficiència del filtratge espacial mitjançant la introducció de "chirp" (la variació del període longitudinal de l'estructura) en el CF. A més, per tal d'incrementar l'efecte considerem diferents estructures i materials. El treball presentat en aquesta tesi doctoral acosta a la realitat la creació d'una nova generació de filtres espacials per a circuits micro-fotònics i micro-dispositius. La segona part d'aquest estudi se centra en l'anàlisi teòric, numèric i experimental de la formació de dispersió espacial negativa en CFs, la gual dóna lloc a efectes de col·limació i focalització un cop travessat el CF. Les idees desenvolupades en aquesta tesi doctoral també són aplicables a sistemes amb pèrdues, en particular a CFs metàl·lics. Els resultats de les simulacions mostren l'existència d'ambdós efectes, filtratge espacial i focalització, en CFs metàl·lics.
APA, Harvard, Vancouver, ISO, and other styles
3

Horger, John. "Multiple plane wave analysis of acousto-optic diffraction of Gaussian shaped light beams." Thesis, Virginia Tech, 1987. http://hdl.handle.net/10919/44053.

Full text
Abstract:
A short history of acousto-optics research is presented along with a general description of how light and sound interact.

The Multiple Scattering model is derived and used with a Gaussian light beam to observe the distortion in light beam profile within the sound field. Numerical results are presented for comparison to previous studies using thick holograms and two orders of light. The results from using two light orders are compared to four light order results.

A Hamming sound amplitude distribution is introduced as a possible way to reduce the amount of light beam profile distortion.
Master of Science

APA, Harvard, Vancouver, ISO, and other styles
4

Wilson, Rebecca Anne. "The electron-beam tunable interference filter spatial light modulator." Thesis, Heriot-Watt University, 1992. http://hdl.handle.net/10399/1494.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bryan, Charles Edward. "An electron beam addressed liquid crystal light valve projector." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235841.

Full text
Abstract:
The contents of this dissertation relate to a liquid crystal light valve which is addressed by an electron beam. The light valve has been configured with a computer aided designed optical projection system, to produce an electron beam addressed liquid crystal light valve projector. The projector is capable of turning an electrical signal into a corresponding projected picture. A minimum resolution of 33um was demonstrated in a smectic-A liquid crystal light valve and one of 40um in a dyed phase change guest-host liquid crystal light valve. The diameter of the active area of the light valve was 45mm. Crucial to the realization of the projector was the patented invention and design of an electrically highly anisotropic disc of 47mm diameter which was approximately 2mm thick. The disc, which was conducting through its thickness and insulating across its plane, formed the top interface of the liquid crystal light valve and permitted the electron beam to deposit a charge pattern which could be conveyed to the thin liquid crystal layer without loss of resolution. The disc was made using a specially constructed piece of apparatus wherein the holes in a glass capillary array were filled with a low melting point alloy. Discs were made using three different low melting point alloys and their various merits were considered. Consideration was also given to developing the deflection coils used in this projector. Computer aided design resulted in a deflection coil system capable of a resolution of over 8 x 108 pixels in a 50mm x 50mm frame at a half angular aperture of 1mrad. In order to evaluate the resolution of the light valve, a micro-computer controlled dot pattern generator was built. This was used to drive the deflection coils in such a way as to control both the dwell time and position of the electron beam spot. Lines of different spacings were written on the light valve. Electron and optical micrographs are presented to demonstrate the quality of the anisotropic disc. Photographs and optical micrographs are included to show the pictures which were obtained from the projector and also the lines written on the light valve.
APA, Harvard, Vancouver, ISO, and other styles
6

Liu, Lihong. "Beam shaping of incoherent white light with faceted structure." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAD010.

Full text
Abstract:
La mise en forme de lumière blanche incohérente à l’aide d’un nouveau composant est proposée dans cette thèse. L'objectif était de réaliser une carte d'irradiance arbitraire sur un écran à l’aide d’une structure originale contenant seulement des facettes, légèrement inclinées par rapport à la direction d'origine selon leurs axes propres. Une approche basée sur l’optique géométrique a été utilisée pour concevoir et analyser la structure proposée. Celle-ci est constituée d’une matrice de facettes jouant le rôle de déflecteur. Nous avons étudié le cas en transmission et en réflexion. L’obtention des angles d’inclinaison s’est faite avec deux approches différentes : l'optimisation sous Zemax et le calcul analytique. Plusieurs critères de qualité ont été proposés pour comparer la carte d'irradiance. Le tolérancement a démontré qu’il est plus intéressant de travailler en transmission qu’en réflexion. Une réalisation a été faite avec succès en utilisant une technologie additive innovante
Beam shaping of incoherent white light with a large spectrum is proposed in this PhD thesis. The objective was to realize an arbitrary irradiance map on a target plane using a faceted structure. To maintain the design result within the geometrical optics domain, large facet element dimensions are required to obtain usable results. Each facet element can slightly tilt along its own axes to deflect the incident light, either by reflection, either by transmission. The calculation of the tilt angles is made by an analytical approach, and also by automatic optimization with Zemax. Several quality factors are proposed in order to qualify the illumination/irradiance chart on the screen. Because of the required tolerances on the fabrication technique, we show that it is more interesting to design a transmissive structure than a reflective one. With a new additive technology, a structure is realized successfully, showing the interest of the concept
APA, Harvard, Vancouver, ISO, and other styles
7

Hällstig, Emil. "Nematic Liquid Crystal Spatial Light Modulators for Laser Beam Steering." Doctoral thesis, Uppsala University, Quantum Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4693.

Full text
Abstract:

Laser beam control is important in many applications. Phase modulating spatial light modulators (SLMs) can be used to electronically alter the phase distribution of an optical wave-front and thus change the direction and shape of a laser beam. Physical constraints set limitations to the SLM and an ideal phase distribution can usually not be realised. In order to understand how such components can be used for non-mechanical beam control three nematic liquid crystal (NLC) SLMs have been thoroughly characterised and modelled.

The pixel structure and phase quantisation give a discrepancy between ideal and realised phase distributions. The impact on beam steering capability was examined by measurements and simulations of the intensity distribution in the far-field.

In two of the studied SLMs the pixel period was shorter than the thickness of the LC layer giving the optical phase shift. This results in a so-called “fringing field”, which was shown to degrade the phase modulation and couple light between polarisation modes. The deformation of the LC was simulated and a finite-difference time-domain (FDTD) algorithm was used to calculate how polarised light propagates through the optically anisotropic SLM.

Non-mechanical beam steering and tracking in an optical free-space communication link were demonstrated. Continual optimisation of the steering angle was achieved by feedback from a video camera.

The optical properties of the SLM in the time period right after a voltage update were studied. It was shown how light is redistributed between orders during the switching from one blazed grating to another. By appropriate choice of the blazed gratings the effects on the diffraction efficiency can be minimised.

The detailed knowledge of the SLM structure and its response to electronic control makes it possible to predict and optimise the device performance in future systems.

APA, Harvard, Vancouver, ISO, and other styles
8

Hällstig, Emil. "Nematic liquid crystal spatial light modulators for laser beam steering /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4693.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Rhodes, Daniel Paul. "Experimental studies of cold atom guiding using hollow light beams." Thesis, University of St Andrews, 2005. http://hdl.handle.net/10023/12932.

Full text
Abstract:
This thesis is concerned with the guiding of cold atoms using optical forces, which is of great importance in the field of atom optics. Atomic beams can be used for precision sensor equipment, building nano-scale structures, construction of quantum computers and to further the understanding of the properties of atoms. Atoms are guided along light beams using the dipole force; there are two regimes under which this force works. Typically red-detuned guides are used (atoms are attracted towards the light) such guides, however, require large detuning and high powers. In this thesis we investigate the use of blue-detuned (atoms are repelled from the light) hollow light beams of moderate power (a few hundred mW) and confine atoms in the dark centre of the beams. Several magneto-optical traps (MOTs) have been constructed to exploit different guiding geometries. Hollow beams have been generated using a variety of methods; in particular the use of a computer controlled spatial light modulator (SLM) has provided great versatility and simplicity to the experimental arrangements. First, experiments were performed with a low-velocity intense source (LVIS) of atoms. A co-linear LG beam significantly enhances the observed flux, however, considerable difficulties are encountered loading atoms into oblique guides. Imaging a hole in the walls of the light tube was used to improve the loading efficiency. Second, guiding a free-falling atom cloud is performed using a non-diffracting Bessel beam. It is found that while the potential of the Bessel beam is steeper than equivalent LG beams the power distribution across the beam severely limits its usefulness. The next study investigated higher-order LG guide beams generated with an SLM. High order modes have a narrower profile so confine the atoms with less interaction with the guide beam, leading to a more natural guide (as opposed to a pushing force). Finally the SLM was used to create non-trivial beam shapes for beam splitters and interferometers.
APA, Harvard, Vancouver, ISO, and other styles
10

Hon, Hock-Woon. "The modelling of multiple beam x-ray systems using visible light." Thesis, Nottingham Trent University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341275.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "A Beam of Light"

1

Voyage of a light beam: Light. Oxford: Raintree, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

On a beam of light. New York: St. Martin's Press, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Moyers, Michael Farley. Practical implementation of light ion beam treatments. Madison, Wisconsin: Medical Physics Publishing, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

A beam of light: An Inspector Montalbano mystery. Thorndike, Maine: Center Point Large Print, 2016.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

L, Phillips Ronald, and Hopen Cynthia Y, eds. Laser beam scintillation with applications. Bellingham, Wash: SPIE Press, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Herring, Donald G. W-beam guiderail transition from light to heavy posts. Albany, N.Y: New York State Dept. of Transportation, Engineering Research and Development Bureau, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Lifante, Ginés. Beam propagation method: For design of optical waveguide devices. Chichester, West Sussex: John Wiley & Sons, Inc., 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

ill, Radunsky Vladimir, ed. On a beam of light: A story of Albert Einstein. San Francisco: Chronicle Books, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Office, Home. Road traffic: The light beam speed measuring device approval 1993. London: HMSO, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ponomarev, A. V. The deep decomposition of wood: Light products of electron-beam fragmentation. Hauppauge, N.Y: Nova Science Publishers, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "A Beam of Light"

1

Mans, Torsten. "Laser Beam Sources." In Tailored Light 2, 155–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01237-2_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Iizuka, Keigo. "Light Beam Range Finders." In Engineering Optics, 627–42. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-69251-7_19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Palmans, Hugo. "Light-Ion Beam Dosimetry." In Clinical 3D Dosimetry in Modern Radiation Therapy, 301–28. Boca Raton : Taylor & Francis, 2017. | Series: Imaging in medical diagnosis and therapy ; 28: CRC Press, 2017. http://dx.doi.org/10.1201/9781315118826-12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Molenaar, D., and T. Kilpatrick. "Anode Rod to Beam Contact." In Light Metals 2014, 511–16. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48144-9_87.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Molenaar, D., and T. Kilpatrick. "Anode Rod to Beam Contact." In Light Metals 2014, 511–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118888438.ch87.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

von Allmen, Martin. "Absorption of Laser Light." In Laser-Beam Interactions with Materials, 6–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-97007-8_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

von Allmen, Martin. "Heating by Laser Light." In Laser-Beam Interactions with Materials, 49–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-97007-8_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

von Allmen, Martin, and Andreas Blatter. "Absorption of Laser Light." In Laser-Beam Interactions with Materials, 5–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-57813-7_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

von Allmen, Martin, and Andreas Blatter. "Heating by Laser Light." In Laser-Beam Interactions with Materials, 41–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-57813-7_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Forbes, Andrew, and Botha Lourens. "Laser Isotope Separation with Shaped Light." In Laser Beam Shaping Applications, 235–61. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "A Beam of Light"

1

Hinkson, J. "Advanced Light Source beam diagnostics systems." In Beam Instrumentation Workshop. AIP, 1994. http://dx.doi.org/10.1063/1.46987.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Song, Xianlin, Jianshuang Wei, and Lingfang Song. "A novel method for generating axial cosine structured light using spatial light modulator." In Laser Beam Shaping XX, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2020. http://dx.doi.org/10.1117/12.2566296.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ferrer-Garcia, Manuel F., Alessio D'Errico, Hugo Larocque, Alicia Sit, and Ebrahim Karimi. "Tight focusing polychromatic structured light." In Laser Beam Shaping XXI, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2021. http://dx.doi.org/10.1117/12.2594335.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rebolledo-Lopez, Jose, Dorilian Lopez-Mago, Servando Lopez-Aguayo, and Abraham Mancilla. "Simulating the branched flow of light." In Laser Beam Shaping XXI, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2021. http://dx.doi.org/10.1117/12.2594201.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Keller, Roderich, Tim Renner, and Dexter J. Massoletti. "Electron beam diagnostics using synchrotron radiation at the Advanced Light Source." In Beam instrumentation. AIP, 1997. http://dx.doi.org/10.1063/1.52283.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Lebow, Paul, James R. Lindle, and Abbie T. Watnik. "Phase optimization for tiled spatial light modulators." In Laser Beam Shaping XXI, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2021. http://dx.doi.org/10.1117/12.2593957.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Pu, Jixiong, and Shojiro Nemoto. "Beam shaping of partially coherent light beams." In Frontiers in Optics. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/fio.2003.thloo2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pu, Jixiong, and Shojiro Nemoto. "Beam shaping of partially coherent light beams." In Frontiers in Optics. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/fio.2003.thoo2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Schlott, V. "Fast Orbit Feedback and Beam Stability at the Swiss Light Source." In BEAM INSTRUMENTATION WORKSHOP 2004: Eleventh Beam Instrumentation Workshop. AIP, 2004. http://dx.doi.org/10.1063/1.1831145.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Shizuma, Toshiyuki. "Nuclear astrophysics with intense photon beam." In LIGHT AT EXTREME INTENSITIES 2011. AIP, 2012. http://dx.doi.org/10.1063/1.4736790.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "A Beam of Light"

1

Aceves, Alejandro. Light Beam and Pulse Propagation in Nonlinear Dielectrics. Fort Belvoir, VA: Defense Technical Information Center, September 1993. http://dx.doi.org/10.21236/ada282548.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chao, Alex W. Collective Beam Instabilities in the Taiwan Light Source. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/800016.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Dixit, S., D. Kalantar, and R. Lyons. Impact of zero order unconverted light on beam pointing. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/13900.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Carlsten, B. E., K. C. D. Chan, and D. W. Feldman. Developing electron beam bunching technology for improving light sources. Office of Scientific and Technical Information (OSTI), August 1997. http://dx.doi.org/10.2172/515605.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Warde, Cardinal, and Robert L. Hillman. Electron-Beam Phase-Only Spatial Light Modulator for Matched Filtering. Fort Belvoir, VA: Defense Technical Information Center, August 1989. http://dx.doi.org/10.21236/ada215026.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Cheng, Weixing, Bel Bacha, and O. Singh. Beam Meassurements Using Visible Synchrotron Light at NSLSII Storage Ring. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1505100.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fisher, Alan S. Beam-Size Measurements on PEP-II Using Synchrotron-Light Interferometry. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/799913.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Krebs, G. F. Survey, alignment, and beam stability at the Advanced Light Source. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/578746.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bergen, A., P. Blattner, A. Klej, Q. Li, T. Menegotto, T. Reiners, and G. Vandermeersch. CIE TN 010:2019 Determination of the Optical Beam Axis, Centre Beam Intensity, and Beam Angle of Directional Light Sources. International Commission on Illumination, 2019. http://dx.doi.org/10.25039/tn.010.2019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Thornton, Remington Tyler. Search for Light Dark Matter Produced in a Proton Beam Dump. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1345594.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography