Log in

Relevant bibliographies by topics / Stokes polarimetry / Journal articles

To see the other types of publications on this topic, follow the link: Stokes polarimetry.

Journal articles on the topic 'Stokes polarimetry'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Stokes polarimetry.'

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.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Leiber, Th, and K. Reif. "First Observations by the Bonn Wide-Field Photometer and Polarimeter (WWFPP): Surface Polarimetry of the Crab Nebula." Symposium - International Astronomical Union 161 (1994): 481–83. http://dx.doi.org/10.1017/s0074180900047926.

Full text

Abstract:

To test the performance of the WWFPP in polarimetric mode, we performed surface polarimetry of the Crab nebula in February 1993 using the Asiago 1.82 m telescope of the ‘Osservatorio Astronomico di Padova’. The polarimeter is a new design and enables us to do simultaneous wide-field polarimetry (15 × 15 arcmin field with 0.43 arcsec/pixel) of four polarization angles using a twin Wollaston prism or simultaneous polarimetry of two angles using a double wedge plate with orthogonal sheet polarizers in combination with an achromatic half wave plate. For the observations described here we used the twin Wollaston. The advantages of this design are independency of fluctuations of atmospheric transmission and identical seeing for one set of Stokes parameters. The results of the observations are in agreement with results of other investigators who performed surface polarimetry of the Crab Nebula.

APA, Harvard, Vancouver, ISO, and other styles

2

Espinosa-Soria, Alba, Francisco J. Rodríguez-Fortuño, Amadeu Griol, and Alejandro Martínez. "Full Measurement of the Stokes Parameters Using a Subwavelength Silicon On-Chip Polarimeter." Advances in Science and Technology 98 (October 2016): 103–8. http://dx.doi.org/10.4028/www.scientific.net/ast.98.103.

Full text

Abstract:

Polarimetry enables to measure the state of polarization (SoP) of a light beam, which is essential in many disciplines. Typical polarimeters use bulky and expensive optical elements such as half-wave plates and grid polarizers. Plasmonic nanostructures may help to transform such bulky components into subwavelength metallic elements showing similar performance. Based on the concept of spin-orbit coupling, here we demonstrate a nanophotonic polarimeter that measures the Stokes parameters of a light beam over an ultrabroad bandwidth in a less than a square wavelength active region. Furthermore, the presented approach is applicable to any wavelength regime and technological platform, paving the way for the miniaturization of polarimeters.

APA, Harvard, Vancouver, ISO, and other styles

3

Guo, Jing, Deqing Ren, Yongtian Zhu, and Xi Zhang. "A high-speed and high-efficiency imaging polarimeter based on ferroelectric liquid crystal retarders: Design and test." Publications of the Astronomical Society of Japan 73, no. 2 (February 16, 2021): 405–16. http://dx.doi.org/10.1093/pasj/psab007.

Full text

Abstract:

Abstract Polarimeters play a key role in investigating solar magnetic fields. In this paper, a High speed and high efficiency Imaging POlarimeter (HIPO) is proposed based on a pair of ferroelectric liquid crystal retarders (FLCs), with the ultimate goal of measuring magnetic fields of prominences and filaments from the ground. A unique feature of the HIPO is that it enables high cadence polarization measurements covering a wide field of view (FOV); the modulation frequency of the HIPO is able to achieve ∼100 Hz, which greatly suppresses the seeing-induced crosstalk, and the maximum FOV can reach 62″ × 525″. Additionally, FLC retardances under low and high states were calibrated individually and found to have a slight discrepancy, which is neglected in most works. Based on FLC calibration results, an optimization was performed using a constrained nonlinear minimization approach to obtain the maximum polarimetric efficiency. Specifically, optimized efficiencies of the Stokes Q, U, and V are well balanced and determined as (ξQ, ξU, ξV) = (0.5957, 0.5534, 0.5777), yielding a total efficiency of 0.9974. Their practical efficiencies are measured as (ξQ′, ξU′, ξV′) = (0.5934, 0.5385, 0.5747), slightly below the optimized values but still resulting in a high total efficiency of 0.9861. The HIPO shows advantages in terms of modulation frequency and polarimetric efficiency compared with most other representative ground-based solar polarimeters. In the observations, measurement accuracy is found to be better than 2.7 × 10−3 by evaluating full Stokes Hα polarimetry results of the chromosphere. This work lays a foundation for the development of high-speed and high-accuracy polarimeters for our next-generation solar instruments.

APA, Harvard, Vancouver, ISO, and other styles

4

Hannonen, Antti, Bernhard J. Hoenders, Wolfgang Elsässer, Ari T. Friberg, and Tero Setälä. "Ghost polarimetry using Stokes correlations." Journal of the Optical Society of America A 37, no. 5 (April 2, 2020): 714. http://dx.doi.org/10.1364/josaa.385851.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Eshaghi, Mahdi, and Aristide Dogariu. "Single-shot omnidirectional Stokes polarimetry." Optics Letters 45, no. 15 (July 30, 2020): 4340. http://dx.doi.org/10.1364/ol.396528.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Raney, R. Keith. "Hybrid Dual-Polarization Synthetic Aperture Radar." Remote Sensing 11, no. 13 (June 27, 2019): 1521. http://dx.doi.org/10.3390/rs11131521.

Full text

Abstract:

Compact polarimetry for a synthetic aperture radar (SAR) system is reviewed. Compact polarimetry (CP) is intended to provide useful polarimetric image classifications while avoiding the disadvantages of space-based quadrature-polarimetric (quad-pol) SARs. Two CP approaches are briefly described, π/4 and circular. A third form, hybrid compact polarimetry (HCP) has emerged as the preferred embodiment of compact polarimetry. HCP transmits circular polarization and receives on two orthogonal linear polarizations. When seen through its associated data processing and image classification algorithms, HPC’s heritage dates back to the Stokes parameters (1852), which are summarized and explained in plain language. Hybrid dual-polarimetric imaging radars were in the payloads of two lunar-orbiting satellites, India’s Earth-observing RISAT-1, and Japan’s ALOS-2. In lunar or planetary orbit, a satellite equipped with an HCP imaging radar delivers the same class of polarimetric information as Earth-based radar astronomy. In stark contrast to quad-pol, compact polarimetry is compatible with wide swath modes of a SAR, including ScanSAR. All operational modes of the SARs aboard Canada’s three-satellite Radarsat Constellation Mission (RCM) are hybrid dual-polarimetric. Image classification methodologies for HCP data are reviewed, two of which introduce errors for reasons explained. Their use is discouraged. An alternative and recommended group of methodologies yields reliable results, illustrated by polarimetrically classified images. A survey over numerous quantitative studies demonstrates HCP polarimetric classification effectiveness. The results verify that the performance accuracy of the HCP architecture is comparable to the accuracy delivered by a quadrature-polarized SAR. Four appendices are included covering related topics, including comments on inflight calibration of an HCP radar.

APA, Harvard, Vancouver, ISO, and other styles

7

Krouglov, Serguei, and Virginijus Barzda. "Three-dimensional nonlinear Stokes–Mueller polarimetry." Journal of the Optical Society of America B 36, no. 2 (February 1, 2019): 541. http://dx.doi.org/10.1364/josab.36.000541.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Arbabi, Ehsan, Seyedeh Mahsa Kamali, Amir Arbabi, and Andrei Faraon. "Full-Stokes Imaging Polarimetry Using Dielectric Metasurfaces." ACS Photonics 5, no. 8 (July 16, 2018): 3132–40. http://dx.doi.org/10.1021/acsphotonics.8b00362.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Tomczyk, Steven, Roberto Casini, Alfred G. de Wijn, and Peter G. Nelson. "Wavelength-diverse polarization modulators for Stokes polarimetry." Applied Optics 49, no. 18 (June 17, 2010): 3580. http://dx.doi.org/10.1364/ao.49.003580.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Azzam, R. M. A. "Stokes-vector and Mueller-matrix polarimetry [Invited]." Journal of the Optical Society of America A 33, no. 7 (June 24, 2016): 1396. http://dx.doi.org/10.1364/josaa.33.001396.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Myserlis, I., E. Angelakis, A. Kraus, C. A. Liontas, N. Marchili, M. F. Aller, H. D. Aller, et al. "Full-Stokes polarimetry with circularly polarized feeds." Astronomy & Astrophysics 609 (January 2018): A68. http://dx.doi.org/10.1051/0004-6361/201630301.

Full text

Abstract:

We present an analysis pipeline that enables the recovery of reliable information for all four Stokes parameters with high accuracy. Its novelty relies on the effective treatment of the instrumental effects even before the computation of the Stokes parameters, contrary to conventionally used methods such as that based on the Müller matrix. For instance, instrumental linear polarization is corrected across the whole telescope beam and significant Stokes Q and U can be recovered even when the recorded signals are severely corrupted by instrumental effects. The accuracy we reach in terms of polarization degree is of the order of 0.1–0.2%. The polarization angles are determined with an accuracy of almost 1°. The presented methodology was applied to recover the linear and circular polarization of around 150 active galactic nuclei, which were monitored between July 2010 and April 2016 with the Effelsberg 100-m telescope at 4.85 GHz and 8.35 GHz with a median cadence of 1.2 months. The polarized emission of the Moon was used to calibrate the polarization angle measurements. Our analysis showed a small system-induced rotation of about 1° at both observing frequencies. Over the examined period, five sources have significant and stable linear polarization; three sources remain constantly linearly unpolarized; and a total of 11 sources have stable circular polarization degree mc, four of them with non-zero mc. We also identify eight sources that maintain a stable polarization angle. All this is provided to the community for future polarization observations reference. We finally show that our analysis method is conceptually different from those traditionally used and performs better than the Müller matrix method. Although it has been developed for a system equipped with circularly polarized feeds, it can easily be generalized to systems with linearly polarized feeds as well.

APA, Harvard, Vancouver, ISO, and other styles

12

O’Connor, Eoin G. P., Andrew Shearer, Christian Gouiffes, and Philippe Laurent. "High Time Resolution Astronomical Polarimetry with GASP." Proceedings of the International Astronomical Union 13, S337 (September 2017): 384–85. http://dx.doi.org/10.1017/s1743921317010626.

Full text

Abstract:

AbstractThe Galway Astronomical Stokes Polarimeter (GASP) is a high time resolution, full-Stokes imaging polarimeter which utilises a Fresnel rhomb prism as a beam-splitter and quarter wave retarder. The ability to perform optical photometry and polarimetry at high frame rates enables more detailed studies of a multitude of compact objects including; optical pulsars, magnetars and Active Galactic Nuclei (AGN). We present a brief discussion of the instruments’ current capabilities and hardware design. GASP is currently configured with two Electron Multiplying Charge-Coupled Devices (EMCCDs), which offer sub-millisecond frame readout speeds over a defined region of interest on the sensor. We will report results from an observational campaign at the William Herschel Telescope (WHT) in December, 2015. During this campaign GASP was used to study the Crab Pulsar, V404 Cygni and polarisation standards. As a subset of our analysis we have identified a significant contribution from the Interstellar Medium (ISM) and the interaction of a varying polarised source with the ISM, the subsequent conversion of linearly polarised light to circular, and its dependence on the angle of the source emission electric field orientation. Further to the presentation of results we will discuss future observational work, which is planned for September 2017 and subsequent improvements to increase the temporal resolution of the detectors.

APA, Harvard, Vancouver, ISO, and other styles

13

Bains, I., J. Caswell, A. M. S. Richards, C. Phillips, S. Tingay, B. Hutawarakorn Kramer, R. J. Cohen, and M. Cunningham. "VLBI OH maser polarimetry with the Australian Long Baseline Array: the star-forming region G340.054–0.244." Proceedings of the International Astronomical Union 3, S242 (March 2007): 64–65. http://dx.doi.org/10.1017/s1743921307012574.

Full text

Abstract:

AbstractUntil recently, high spatial resolution full Stokes maser polarimetry was the sole domain of northern interferometers and a wealth of sources in the far south remained unexplored due to a lack of suitable instrumentation having both high spatial and high velocity resolution. The Australia Telescope Long Baseline Array (LBA) has now switched to disk-based software correlation, permitting full Stokes observing in spectral line mode with velocity channels which are sufficiently narrow to sample usefully the polarization structure. To illustrate the utility of this valuable addition to radio astronomy, we present preliminary results of the first such polarimetric observation, the subject of which are the OH masers in the star-forming region G340.054–0.244.

APA, Harvard, Vancouver, ISO, and other styles

14

Brugés Martelo, Javier, Jan Lundgren, and Mattias Andersson. "Paperboard Coating Detection Based on Full-Stokes Imaging Polarimetry." Sensors 21, no. 1 (December 31, 2020): 208. http://dx.doi.org/10.3390/s21010208.

Full text

Abstract:

The manufacturing of high-quality extruded low-density polyethylene (PE) paperboard intended for the food packaging industry relies on manual, intrusive, and destructive off-line inspection by the process operators to assess the overall quality and functionality of the product. Defects such as cracks, pinholes, and local thickness variations in the coating can occur at any location in the reel, affecting the sealable property of the product. To detect these defects locally, imaging systems must discriminate between the substrate and the coating. We propose an active full-Stokes imaging polarimetry for the classification of the PE-coated paperboard and its substrate (before applying the PE coating) from industrially manufactured samples. The optical system is based on vertically polarized illumination and a novel full-Stokes imaging polarimetry camera system. From the various parameters obtained by polarimetry measurements, we propose implementing feature selection based on the distance correlation statistical method and, subsequently, the implementation of a support vector machine algorithm that uses a nonlinear Gaussian kernel function. Our implementation achieves 99.74% classification accuracy. An imaging polarimetry system with high spatial resolution and pixel-wise metrological characteristics to provide polarization information, capable of material classification, can be used for in-process control of manufacturing coated paperboard.

APA, Harvard, Vancouver, ISO, and other styles

15

Sankarasubramanian, K., G. Srinivasulu, A. V. Ananth, and P. Venkatakrishnan. "Stokes Polarimetry at the Kodaikanal Tower Tunnel Telescope." International Astronomical Union Colloquium 179 (2000): 241–44. http://dx.doi.org/10.1017/s0252921100064575.

Full text

Abstract:

AbstractA Stokes polarimeter has been developed using a masked CCD arrangement for the measurement of the vector magnetic field of sunspots. Charge shifting within the CCD is used to record near simultaneous orthogonal polarisation. The testing of the Stokes polarimeter and the behavior of the integrated system combined with the Kodaikanal tower tunnel telescope will be discussed.

APA, Harvard, Vancouver, ISO, and other styles

16

Loktev, Vladislav, Tuomo Salmi, Joonas Nättilä, and Juri Poutanen. "Oblate Schwarzschild approximation for polarized radiation from rapidly rotating neutron stars." Astronomy & Astrophysics 643 (November 2020): A84. http://dx.doi.org/10.1051/0004-6361/202039134.

Full text

Abstract:

We have developed a complete theory for the calculation of the observed Stokes parameters for radiation emitted from the surface of a rapidly rotating neutron star (NS) using the oblate Schwarzschild approximation. We accounted for the rotation of the polarization plane due to relativistic effects along the path from the stellar surface to the observer. The results were shown to agree with those obtained by performing full numerical general relativistic ray-tracing with the ARCMANCER code. We showed that the obtained polarization angle profiles may differ substantially from those derived for a spherical star. We demonstrated that assuming incorrect shape for the star can lead to biased constraints for NS parameters when fitting the polarization data. Using a simplified model, we also made a rough estimate of how accurately the geometrical parameters of an accreting NS can be determined using the X-ray polarization measurements of upcoming polarimeters like the Imaging X-ray Polarimeter Explorer or the enhanced X-ray Timing and Polarimetry mission.

APA, Harvard, Vancouver, ISO, and other styles

17

Phan, Quoc-Hung, and Yu-Lung Lo. "Stokes-Mueller matrix polarimetry system for glucose sensing." Optics and Lasers in Engineering 92 (May 2017): 120–28. http://dx.doi.org/10.1016/j.optlaseng.2016.08.017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Liu, Yeng-Cheng, Yu-Lung Lo, Chang-Ye Li, and Chia-Chi Liao. "Spectroscopic Stokes polarimetry based on Fourier transform spectrometer." Optics Communications 336 (February 2015): 295–300. http://dx.doi.org/10.1016/j.optcom.2014.09.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Zhang, Yaxin, Jinjin Jin, Mingbo Pu, Qiong He, Yinghui Guo, Xiong Li, Xiaoliang Ma, and Xiangang Luo. "Full Stokes Polarimetry for Wide‐Angle Incident Light." physica status solidi (RRL) – Rapid Research Letters 14, no. 5 (March 12, 2020): 2000044. http://dx.doi.org/10.1002/pssr.202000044.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Yu, Mingxuan, Tiegen Liu, Hesong Huang, Haofeng Hu, and Bingjing Huang. "Multispectral Stokes Imaging Polarimetry Based on Color CCD." IEEE Photonics Journal 8, no. 5 (October 2016): 1–10. http://dx.doi.org/10.1109/jphot.2016.2599006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Cook, P. J., J. Zhang, Y. Liu, W. Guan, N. Wang, L. Qin, T. H. Shen, G. A. Jones, and P. J. Grundy. "Magneto-Optical Stokes Polarimetry and Nanostructured Magnetic Materials." Journal of Nanoscience and Nanotechnology 12, no. 2 (February 1, 2012): 1067–73. http://dx.doi.org/10.1166/jnn.2012.4258.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Sankarasubramanian, K., G. Srinivasulu, A. V. Ananth, and P. Venkatakrishnan. "Stokes polarimetry at the Kodaikanal tower tunnel telescope." Journal of Astrophysics and Astronomy 21, no. 3-4 (September 2000): 241–44. http://dx.doi.org/10.1007/bf02702399.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Volkmer, Reiner. "3-Dimensional High-Resolution Solar Spectro-Polarimetry." International Astronomical Union Colloquium 149 (1995): 193–94. http://dx.doi.org/10.1017/s0252921100022934.

Full text

Abstract:

AbstractIn order to obtain information on the magnetic field on the sun in two spatial dimensions, a spectro-polarimeter of high spatial, spectral, and temporal resolution was built in the German Vacuum Tower Telescope (VTT) at the Observatorio del Teide/Tenerife. The two-dimensional spectrometer in the VTT, using a Universal Birefringent Filter (UBF) and a Fabry-Perot Interferometer (FPI) to obtain narrow-band nltergrams with a spectral resolution of the order of 3.105 (approx. 22 mÅ at CE5; at 6303 Å) and a spatial resolution of 0.2 arcsec/pixel (Bendlin et al. 1992, Bendlin and Volkmer 1993), was extended to work as a spectropolarimeter for measuring Stokes-I and Stokes-V profiles.

APA, Harvard, Vancouver, ISO, and other styles

24

Karachevtsev, A. O. "Fourier-Stokes polarimetry of fields corresponding to linearly and circularly polarized birefringent protein networks." Semiconductor Physics Quantum Electronics and Optoelectronics 15, no. 3 (September 25, 2012): 252–60. http://dx.doi.org/10.15407/spqeo15.03.252.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Dubolazov, O. V., M. Yu Sakhnovsky, O. V. Olar, P. M. Grigorishin, and Yu O. Ushenko. "Fourier-Stokes polarimetry system of biological tissues polycrystalline networks." Optoelectronic Information-Power Technologies 35, no. 1 (2019): 36–44. http://dx.doi.org/10.31649/1681-7893-2019-35-1-36-44.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Yampolskiy, A., O. Makarenko, V. Lendel, V. Prorok, A. Sharapa, and L. Poperenko. "Stokes-polarimetry of ultrathin Au and Sn island films." Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics, no. 4 (2018): 122–29. http://dx.doi.org/10.17721/1812-5409.2018/4.18.

Full text

Abstract:

The optical properties of ultrathin Au and Sn islet films, obtained by the methods of magnetron sputtering and thermal evaporation, respectively, are considered in this paper. By measuring the Stokes vector of the beam reflected from the samples, polarized and depolarized radiation components were separated. The conditions of the polarization degree dependence on the surface structure for a series of islet films with different morphologies are analyzed. To determine the morphological structure of the metal layer, methods of atomic force microscopy and resistivity measurement were also employed. The parameters of discontinuous film, obtained by optical and non-optical methods, are compared. It is established that with an increase in the angle of radiation incidence onto the samples, the polarization degree of the reflected beam decreases. Such behavior can be explained by the Mie theory of light scattering by particles. The magnitude of depolarizing action of the samples also depends on the morphology of their surface, correlating with the number of inequalities on it. The applied method of Stokes polarimetry, thus, allows one to obtain additional information on the structure of the surface, which is its advantage.

APA, Harvard, Vancouver, ISO, and other styles

27

Foreman, Matthew R., and François Goudail. "On the equivalence of optimization metrics in Stokes polarimetry." Optical Engineering 58, no. 08 (March 5, 2019): 1. http://dx.doi.org/10.1117/1.oe.58.8.082410.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Cheng, Bo, Yuxiao Zou, Hanxiao Shao, Tong Li, and Guofeng Song. "Full-Stokes imaging polarimetry based on a metallic metasurface." Optics Express 28, no. 19 (September 1, 2020): 27324. http://dx.doi.org/10.1364/oe.400622.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Faugeras, Blaise, and Francesco Orsitto. "Equilibrium reconstruction at JET using Stokes model for polarimetry." Nuclear Fusion 58, no. 10 (August 30, 2018): 106032. http://dx.doi.org/10.1088/1741-4326/aad751.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Liu, Jiamin, Chuanwei Zhang, Zhicheng Zhong, Honggang Gu, Xiuguo Chen, Hao Jiang, and Shiyuan Liu. "Measurement configuration optimization for dynamic metrology using Stokes polarimetry." Measurement Science and Technology 29, no. 5 (April 16, 2018): 054010. http://dx.doi.org/10.1088/1361-6501/aaaeeb.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Manthalkar, Amogh, Isaac Nape, Najmeh Tabe Bordbar, Carmelo Rosales-Guzmán, Shanti Bhattacharya, Andrew Forbes, and Angela Dudley. "All-digital Stokes polarimetry with a digital micromirror device." Optics Letters 45, no. 8 (April 9, 2020): 2319. http://dx.doi.org/10.1364/ol.389346.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Sutinjo, A., J. O'Sullivan, E. Lenc, R. B. Wayth, S. Padhi, P. Hall, and S. J. Tingay. "Understanding instrumental Stokes leakage in Murchison Widefield Array polarimetry." Radio Science 50, no. 1 (January 2015): 52–65. http://dx.doi.org/10.1002/2014rs005517.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Barrett, P. "Multicolour 'Stokes' polarimetry of SN 1987A in the LMC." Monthly Notices of the Royal Astronomical Society 234, no. 4 (October 1, 1988): 937–56. http://dx.doi.org/10.1093/mnras/234.4.937.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Zhao, Bo, Xiao-Bo Hu, Valeria Rodríguez-Fajardo, Zhi-Han Zhu, Wei Gao, Andrew Forbes, and Carmelo Rosales-Guzmán. "Real-time Stokes polarimetry using a digital micromirror device." Optics Express 27, no. 21 (October 11, 2019): 31087. http://dx.doi.org/10.1364/oe.27.031087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Elias, Nicholas M. II, Stanislav S. Edel, Carol E. Jones, Frances E. Mackay, David Mozurkewich, Anders M. Jorgensen, and Henrique R. Schmitt. "Imaging Stars by Performing Full-Stokes Optical Interferometric Polarimetry." Journal of Astronomy and Space Sciences 29, no. 1 (March 15, 2012): 85–91. http://dx.doi.org/10.5140/jass.2012.29.1.085.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Samim, Masood, Serguei Krouglov, Daniel F. James, and Virginijus Barzda. "Characterization of heterogeneous media using nonlinear Stokes–Mueller polarimetry." Journal of the Optical Society of America B 33, no. 12 (November 29, 2016): 2617. http://dx.doi.org/10.1364/josab.33.002617.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Scholiers, W., and E. Wiehr. "Stokes-spectro-polarimetry with a two-dimensional diode array." Solar Physics 99, no. 1-2 (September 1985): 349–63. http://dx.doi.org/10.1007/bf00157318.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Code, A. D., K. H. Nordsieck, and C. M. Anderson. "Ultraviolet Polarimetry." International Astronomical Union Colloquium 123 (1990): 291. http://dx.doi.org/10.1017/s0252921100077162.

Full text

Abstract:

AbstractInterstellar polarization and polarization of the sky background is predicted to be significantly smaller in the ultraviolet than in the optical region of the spectrum; while intrinsic polarization is expected to be greater. For these reasons alone ultraviolet polarimetry should provide a powerful diagnostic tool. To date such polarization measurements have not been undertaken. The Wisconsin Ultraviolet Photopolarimeter Experiment (WUPPE) will be the first to carry out a program of UV spectropolarimetry. WUPPE is one of the four ASTRO-1 payloads. It consists of a half meter aperture Cassegrain telescope feeding a spectropolarimeter capable of measuring spectral energy distribution and linear and circular polarization in the spectral region from about 3300 Å to 1400 Åwith spectral resolutions from about 4 Å to 40 Å, depending upon the mode of observation and nature of the source. The effective area of WUPPE is approximately 100 cm2 at 2000 Å and the faint stellar limit for measurement of all four Stokes parameters is about 16 magnitude. The design provides for a large dynamic range and the high precision required for accurate polarimetry. Launch of the first ASTRO Mission is expected in May of 1990.The science goals for WUPPE include studies of ultraviolet interstellar polarization, intrinsic polarization of a wide variety of stellar types and measurements of polarization of selected extragalactic objects. A description of WUPPE and simulations of expected data will be presented. The paper will also discuss a wide field imaging survey polarimeter (WISP) now undergoing development for a sounding rocket payload at the University of Wisconsin. (This work is supported by NASA contract NAS5-26777).

APA, Harvard, Vancouver, ISO, and other styles

39

Jayasri, P. V., H. S. V. Usha Sundari, E. V. S. Sita Kumari, and A. V. V. Prasad. "Study of Oil spill in Norwegian area using Decomposition Techniques on RISAT-1 Hybrid Polarimetric Data." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-8 (November 28, 2014): 1043–48. http://dx.doi.org/10.5194/isprsarchives-xl-8-1043-2014.

Full text

Abstract:

Over past few years Synthetic Aperture Radar(SAR) has received a considerable attention for monitoring and detection of oil spill due to its unique capabilities to provide wide-area surveillance and day and night measurements, almost independently from atmospheric conditions. The critical part of the oil spill detection is to distinguish oil spills from other natural phenomena. Stokes vector analysis of the image data is studied to estimate the polarized circular and linear components of the backscatter signal which essentially utilize the degree of polarization(m) and relative phase (δ) of the target. In a controlled oil spill experiment conducted at Norwegian bay during 17th to 22nd June 2014, RISAT-1 hybrid polarimetry images were utilized to study the characteristics of oil spill in the sea. The preliminary results obtained by using polarimetric decomposition technique on hybrid polarimetric data to decipher the polarimetric characteristics of oil spills from natural waters are discussed in the paper.

APA, Harvard, Vancouver, ISO, and other styles

40

Srivastava, H. S., and T. Sivasankar. "POTENTIAL OF C-BAND HYBRID POLARIMETRIC RISAT-1 SAR DATA FOR WHEAT CROP HEIGHT ESTIMATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W6 (July 26, 2019): 637–41. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w6-637-2019.

Full text

Abstract:

<p><strong>Abstract.</strong> The advancement of hybrid polarimetry and the launch of Radar Imaging SATellite-1 (RISAT-1), the first Earth observing satellite with capability to acquire hybrid polarimetric SAR data, have given opportunity to explore the potentials of this data for various geo-spatial applications. Among these, crop growth monitoring and soil moisture estimation is one of the important application for proper irrigation management, yield forecasting and crop insurance systems. The objective of this paper is to provide a better understanding of the sensitivity of RISAT-1 hybrid polarimetric SAR data for wheat height. However, backscattering coefficients have shown less sensitive towards wheat height, polarimetric parameters such as Stokes parameters and scattering decomposition parameters have shown higher sensitivity. The analysis observed the highest correlation coefficient (|r|) and lowest RMSE (in m) for g<sub>3</sub> with 0.61 and 0.18 respectively followed by odd bounce with 0.59 and 0.2 respectively.</p>

APA, Harvard, Vancouver, ISO, and other styles

41

Dubolazov, O. V., M. Yu Sakhnovsky, O. V. Olar, P. M. Grigorishin, and Yu O. Ushenko. "Fourier-Stokes-polarimetry system of polycrystalline networks of biological tissues." Optoelectronic Information-Power Technologies 1, no. 35 (2019): 36–44. http://dx.doi.org/10.31649/1681-7893-2018-35-1-36-44.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Angelsky, P. O., L. B. Bodnar, M. P. Gorskii, and L. Ya Kushnerick. "Fourier-Stokes polarimetry of fields scattered by birefringent biological networks." Optical Memory and Neural Networks 21, no. 4 (October 2012): 233–41. http://dx.doi.org/10.3103/s1060992x12040029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Hall, Shaun A., Marc-André Hoyle, Joshua S. Post, and Dennis K. Hore. "Combined Stokes Vector and Mueller Matrix Polarimetry for Materials Characterization." Analytical Chemistry 85, no. 15 (July 23, 2013): 7613–19. http://dx.doi.org/10.1021/ac401864g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Singh, Keshaan, Najmeh Tabebordbar, Andrew Forbes, and Angela Dudley. "Digital Stokes polarimetry and its application to structured light: tutorial." Journal of the Optical Society of America A 37, no. 11 (July 20, 2020): C33. http://dx.doi.org/10.1364/josaa.397912.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Shen, Qun, S. Shastri, and K. D. Finkelstein. "Stokes polarimetry for x rays using multiple‐beam diffraction (invited)." Review of Scientific Instruments 66, no. 2 (February 1995): 1610–13. http://dx.doi.org/10.1063/1.1145857.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Adhiya, Asha, Ankur Pandya, and Rajwinder Kaur. "Determination of Mueller Matrix for Metal Substrates by Stokes Polarimetry." IEEE Transactions on Instrumentation and Measurement 70 (2021): 1–7. http://dx.doi.org/10.1109/tim.2021.3097863.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Cenacchi, Elena, A. Kraus, and K. H. Mack. "Deriving AGN properties from circular and linear radio polarimetry." Proceedings of the International Astronomical Union 4, S259 (November 2008): 561–62. http://dx.doi.org/10.1017/s1743921309031330.

Full text

Abstract:

AbstractWe report multi-frequency circular polarization measurements for the radio source 0056-00 taken at the Effelsberg 100-m radio telescope. The data reduction is based on a new calibration procedure that allows the contemporary measurement of the four Stokes parameters with single-dish radio telescopes.

APA, Harvard, Vancouver, ISO, and other styles

48

Goto, Motoshi, Ryohko Ishikawa, Yusuke Iida, and Saku Tsuneta. "Analytical Solution of the Hanle Effect in View of CLASP and Future Polarimetric Solar Studies." Atoms 7, no. 2 (June 4, 2019): 55. http://dx.doi.org/10.3390/atoms7020055.

Full text

Abstract:

We have solved a problem of the Hanle effect for the hydrogen Lyman- α line in an intuitive and straightforward way. The Stokes parameters amid an anisotropic radiation field and a magnetic field are derived as an analytical formula which enables us to conduct immediate analyses of observation data taken by spectro-polarimetry. The derived formula is, in particular, supposed to be used for the analysis of the data taken by CLASP (Chromospheric Lyman-Alpha Spectro-Polarimeter), which has aimed at measuring the linear polarization in the hydrogen Lyman- α line (121.6 nm) and then evaluating the magnetic field in the upper chromosphere and the transition region. The dependence of the Stokes parameters on the strength and direction of the magnetic field and on the observation angle is derived with our analytical model. The results show a satisfactory agreement with those of a more rigorous numerical calculation where the radiative transfer is taken into account and the consistency is assured between the anisotropic randiation field and the polarized atomic state.

APA, Harvard, Vancouver, ISO, and other styles

49

Li, Xiaobo, Tiegen Liu, Bingjing Huang, Zhanjie Song, and Haofeng Hu. "Optimal distribution of integration time for intensity measurements in Stokes polarimetry." Optics Express 23, no. 21 (October 13, 2015): 27690. http://dx.doi.org/10.1364/oe.23.027690.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Hore, Dennis K., Almeria L. Natansohn, and Paul L. Rochon. "Optical Anisotropy as a Probe of Structural Order by Stokes Polarimetry." Journal of Physical Chemistry B 106, no. 35 (September 2002): 9004–12. http://dx.doi.org/10.1021/jp025877u.

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!