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Journal articles on the topic 'Polarization (Light)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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1

Rebhan, Anton, and Günther Turk. "Polarization effects in light-by-light scattering: Euler–Heisenberg versus Born–Infeld." International Journal of Modern Physics A 32, no. 10 (April 6, 2017): 1750053. http://dx.doi.org/10.1142/s0217751x17500531.

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The angular dependence of the differential cross-section of unpolarized light-by-light scattering summed over final polarizations is the same in any low-energy effective theory of quantum electrodynamics and also in Born–Infeld electrodynamics. In this paper, we derive general expressions for polarization-dependent low-energy scattering amplitudes, including a hypothetical parity-violating situation. These are evaluated for quantum electrodynamics with charged scalar or spinor particles, which give strikingly different polarization effects. Ordinary quantum electrodynamics is found to exhibit rather intricate polarization patterns for linear polarizations, whereas supersymmetric quantum electrodynamics and Born–Infeld electrodynamics give particularly simple forms.

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2

Wang, Jijun, Jing Cao, Min Zhu, Zhipan Zhu, and Yun-tuan Fang. "Split and Merge of Left–Right Circular Polarized Light through Coupled Magnetic Resonators." Zeitschrift für Naturforschung A 67, no. 8-9 (September 1, 2012): 491–97. http://dx.doi.org/10.5560/zna.2012-0051.

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In order to obtain the means to control light polarization, we designed a structure of coupled magnetic resonators and studied its transmission properties by the 4x4 transfer matrix method. The incidence of linearly polarized light results in two transmission resonant peaks of left-handed circular polarization at shorter wavelengths and two transmission resonant peaks of right-handed circular polarization at longer wavelengths, respectively. Through adjusting the magnetizations, the inner left-handed circular polarization and right-handed circular polarization can be merged into one linear polarization, while the two outside resonant peaks keep their circular polarization. The polarized direction of the output linearly polarized light can be controlled by the polarized direction of incidence light. The incidence light with one polarization can output light with three kinds of polarizations through the designed structure.

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3

Petrov, Nikolai I. "Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction." Fibers 9, no. 6 (June 1, 2021): 34. http://dx.doi.org/10.3390/fib9060034.

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Polarization is measured very often to study the interaction of light and matter, so the description of the polarization of light beams is of both practical and fundamental interest. This review discusses the polarization properties of structured light in multimode graded-index optical fibers, with an emphasis on the recent advances in the area of spin-orbit interactions. The basic physical principles and properties of twisted light propagating in a graded index fiber are described: rotation of the polarization plane, Laguerre–Gauss vector beams with polarization-orbital angular momentum entanglement, splitting of degenerate modes due to spin-orbit interaction, depolarization of light beams, Berry phase and 2D and 3D degrees of polarizations, etc. Special attention is paid to analytical methods for solving the Maxwell equations of a three-component field using perturbation analysis and quantum mechanical approaches. Vector and tensor polarization degrees for the description of strongly focused light beams and their geometrical interpretation are also discussed.

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4

Hu, Tianwei, Fei Shen, Kaipeng Wang, Kai Guo, Xiao Liu, Feng Wang, Zhiyong Peng, et al. "Broad-Band Transmission Characteristics of Polarizations in Foggy Environments." Atmosphere 10, no. 6 (June 24, 2019): 342. http://dx.doi.org/10.3390/atmos10060342.

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Based on the Monte Carlo (MC) algorithm, we simulate the evolutions of different types of the polarized lights in the broad-band range from visible to infrared in foggy environments. Here, we have constructed two scattering systems to simulate the transmission characteristics of the polarized lights: (1) A monodisperse system based on five types of particles with the sizes of 0.5, 1.0, 2.5, 4, and 5 µm, respectively; (2) a polydisperse system based on scattering particles with a mean value (size) of 2.0 μm. Our simulation results show that linearly polarized light (LPL) and circularly polarized light (CPL) exhibit different advantages in different wavelengths and different scattering systems. The polarization maintenances (PM) of the degree of circular polarizations (DoCPs) are better than those of the degree of linear polarizations (DoLPs) for most incident wavelengths. CPL is not superior to LPL in the strong-absorption wavelengths of 3.0µm, 6.0µm, and long infrared. Here, when the wavelength is closer to the particle sizes in a system, the influence on propagating polarizations will be more obvious. However, the difference in the degree of polarization (DoP) between the resulting CPL and LPL is positive at these points, which means the penetrating ability of CPL is superior to that of LPL in these scattering systems. We have also simulated the extinction efficiency Qext and the scattering index ratio Qratio as functions of both wavelength and particle size for analyzing polarization’s transmission characteristics. Our work paves the way of selecting the optimal incident wavelengths and polarizations for concrete scattering systems.

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5

Kulish, M. R. "Temperature effect on light polarization in uniaxial crystals." Semiconductor Physics Quantum Electronics and Optoelectronics 19, no. 1 (April 8, 2016): 44–46. http://dx.doi.org/10.15407/spqeo19.01.044.

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6

Wang, Yan Hong, Gao Wang, and Ji Liu. "Research on Relationship of Polarization and Rayleigh Backscatter in Bidirectional Fiber Communication Systems." Applied Mechanics and Materials 312 (February 2013): 625–30. http://dx.doi.org/10.4028/www.scientific.net/amm.312.625.

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In this paper, the general theory and polarization property of RB in single mode fiber is discussed. According to the theoretical analysis results, the bidirectional carrying system with a polarization rotating device for analog radio frequency (RF) signal is set up. The relationship of the system CRN and the different polarization state by the polarization rotating device is studied. The results show that the RB light polarization state of backward fiber end can keep to perpendicular to that of forward light when backward lights polarization is orthogonal forward lights polarization. So utilizing orthogonal polarization method for decreasing CRN can be carried on. The system performance is analyzed by simulation. The simulation results show that CRN of the bidirectional communication system on a single mode fiber can be inhibited by using the method and RB light can decrease by an order of magnitude.

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7

Gomez-Sarabia, C. M., J. T. Rodriguez-Doñate, and R. Rodriguez-Doñate. "Light Colors using polarization." Optica Pura y Aplicada 48, no. 2 (June 30, 2015): 159–61. http://dx.doi.org/10.7149/opa.48.2.159.

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8

Ouseph, P. J. "Polarization of Reflected Light." Physics Teacher 40, no. 7 (October 2002): 438–39. http://dx.doi.org/10.1119/1.1517889.

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9

Munchausen, Linda L. "Polarization of Scattered Light." Journal of Chemical Education 71, no. 2 (February 1994): 155. http://dx.doi.org/10.1021/ed071p155.1.

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10

Gao Shuyuan, 高书苑, 石俊凯 Shi Junkai, 纪荣祎 Ji Rongyi, 黎尧 Li Yao, and 周维虎 Zhou Weihu. "Polarization Response of Retroreflector to Polarization-Modulated Light." Chinese Journal of Lasers 45, no. 12 (2018): 1204005. http://dx.doi.org/10.3788/cjl201845.1204005.

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11

Semkin, Valentin, Dmitry Mylnikov, Elena Titova, Sergey Zhukov, and Dmitry Svintsov. "Gate-controlled polarization-resolving mid-infrared detection at metal–graphene junctions." Applied Physics Letters 120, no. 19 (May 9, 2022): 191107. http://dx.doi.org/10.1063/5.0088724.

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The ability to resolve the polarization of light with on-chip devices represents an urgent problem in optoelectronics. The detectors with polarization resolution demonstrated so far mostly require multiple oriented detectors or movable external polarizers. Here, we experimentally demonstrate the feasibility to resolve the polarization of mid-infrared light with a single chemical-vapor-deposited graphene-channel device with dissimilar metal contacts. This possibility stems from an unusual dependence of photoresponse at graphene–metal junctions on gate voltage and polarization angle. Namely, there exist certain gate voltages providing the polarization-insensitive signal; operation at these voltages can be used for power calibration of the detector. At other gate voltages, the detector features very strong polarization sensitivity, with the ratio of signals for two orthogonal polarizations reaching [Formula: see text]. Operation at these voltages can provide information about polarization angles, after the power calibration. We show that such unusual gate- and polarization-dependence of photosignal can appear upon competition of isotropic and anisotropic photovoltage generation pathways and discuss the possible physical candidates.

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12

Slovick, Brian A., You Zhou, Zhi Gang Yu, Ivan I. Kravchenko, Dayrl P. Briggs, Parikshit Moitra, Srini Krishnamurthy, and Jason Valentine. "Metasurface polarization splitter." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2090 (March 28, 2017): 20160072. http://dx.doi.org/10.1098/rsta.2016.0072.

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Polarization beam splitters, devices that separate the two orthogonal polarizations of light into different propagation directions, are among the most ubiquitous optical elements. However, traditionally polarization splitters rely on bulky optical materials, while emerging optoelectronic and photonic circuits require compact, chip-scale polarization splitters. Here, we show that a rectangular lattice of cylindrical silicon Mie resonators functions as a polarization splitter, efficiently reflecting one polarization while transmitting the other. We show that the polarization splitting arises from the anisotropic permittivity and permeability of the metasurface due to the twofold rotational symmetry of the rectangular unit cell. The high polarization efficiency, low loss and low profile make these metasurface polarization splitters ideally suited for monolithic integration with optoelectronic and photonic circuits. This article is part of the themed issue ‘New horizons for nanophotonics’.

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13

Cheng, Bo, Yuxiao Zou, and Guofeng Song. "Full Stokes Mid-Wavelength Infrared Polarization Photodetector Based on the Chiral Dielectric Metasurface." Photonics 11, no. 6 (June 18, 2024): 571. http://dx.doi.org/10.3390/photonics11060571.

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Conventional imaging techniques can only record the intensity of light while polarization imaging can record the polarization of light, thus obtaining a higher dimension of image information. We use the COMSOL software to numerically propose a circular polarization photodetector composed of the dislocated 2-hole Si chiral metasurfaces controlling the circular polarization lights and the HgCdTe (MCT) photodetector chip to detect the intensity of light signals. The chiral metasurfaces can be equated to a significant radiation source of the Z-type current density under the right circularly polarized incidence conditions, which explains the large circular dichroism (CD) of absorption of 95% in chiral photodetectors. In addition, the linear dichroism (LD) of the linear polarization pixel is 0.62, and the extinction ratio (ER) is 21 dB. The full Stokes pixel using the six-image-element technique can almost measure arbitrary polarization information of light at 4 μm operation wavelength. Our results highlight the potential of circular dichroic metasurfaces as photonic manipulation platforms for miniaturized polarization detectors.

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14

Shi, Zhujun, Alexander Y. Zhu, Zhaoyi Li, Yao-Wei Huang, Wei Ting Chen, Cheng-Wei Qiu, and Federico Capasso. "Continuous angle-tunable birefringence with freeform metasurfaces for arbitrary polarization conversion." Science Advances 6, no. 23 (June 2020): eaba3367. http://dx.doi.org/10.1126/sciadv.aba3367.

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Birefringence occurs when light with different polarizations sees different refractive indices during propagation. It plays an important role in optics and has enabled essential polarization elements such as wave plates. In bulk crystals, it is typically constrained to linear birefringence. In metamaterials with freeform meta-atoms, however, one can engineer the optical anisotropy such that light sees different indices for arbitrary—linear, circular, or elliptical—orthogonal eigen-polarization states. Using topology-optimized metasurfaces, we demonstrate this arbitrary birefringence. It has the unique feature that it can be continuously tuned from linear to elliptical birefringence, by changing the angle of incidence. In this way, a single metasurface can operate as many wave plates in parallel, implementing different polarization transformations. Angle-tunable arbitrary birefringence expands the scope of polarization optics, enables compact and versatile polarization operations that would otherwise require cascading multiple elements, and may find applications in polarization imaging, quantum optics, and other areas.

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15

Zhou, Chu, Minggui Teng, Youwei Lyu, Si Li, Chao Xu, and Boxin Shi. "Polarization-Aware Low-Light Image Enhancement." Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 3 (June 26, 2023): 3742–50. http://dx.doi.org/10.1609/aaai.v37i3.25486.

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Polarization-based vision algorithms have found uses in various applications since polarization provides additional physical constraints. However, in low-light conditions, their performance would be severely degenerated since the captured polarized images could be noisy, leading to noticeable degradation in the degree of polarization (DoP) and the angle of polarization (AoP). Existing low-light image enhancement methods cannot handle the polarized images well since they operate in the intensity domain, without effectively exploiting the information provided by polarization. In this paper, we propose a Stokes-domain enhancement pipeline along with a dual-branch neural network to handle the problem in a polarization-aware manner. Two application scenarios (reflection removal and shape from polarization) are presented to show how our enhancement can improve their results.

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16

Zhang, Dengwei, Cui Liang, and Nan Li. "A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope." Sensors 20, no. 13 (July 5, 2020): 3762. http://dx.doi.org/10.3390/s20133762.

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In this paper, a novel optical approach to double the sensitivity to angular rate of interferometric fiber optic gyroscope (IFOG) is proposed. Two fiber polarization combiner/splitters (FPCSs), as the key components, are added in the traditional IFOG light path. The FPCSs are able to either combine two orthogonal polarizations transmitting at two different polarization-maintaining fibers (PMFs) into the two orthogonal axes of one PMF, respectively, or split two polarizations transmitting at the two orthogonal axes of one PMF into two polarizations to transmit at two different PMFs, respectively. Through the specific placement and coupling of these two FPCSs, the incident light can transmit twice along the polarization-maintaining fiber coil (PMFC). The novel approach is verified experimentally and the experimental results show consistency with the theoretical analysis. The proposed approach is able to double the sensitivity of IFOGs and can increase the signal-to-noise ratio (SNR) without increasing the length of PMFC, which is very susceptible to environmental influences and is of great significance in the technical improvement of IFOGs, as well as the miniaturization of IFOGs.

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17

Hong, Xin, Xiao-Qiang Wang, Dong-Xue Li, and Yun-Jing Shang. "Core-cap heterodimer independent of polarization direction of excitation light." Acta Physica Sinica 71, no. 3 (2022): 037801. http://dx.doi.org/10.7498/aps.71.20211381.

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The plasmonic anisotropic nanostructure possesses the enhanced surface electric field and unique optical properties in near-infrared spectrum, thus it has potential applications in nano-optoelectronics and medical sensing. To obtain the best property, the excitation polarization normally needs to match the orientation of the structure. The strong polarization dependence, however, greatly limits the excitation efficiency. In this work, a patchy structure is introduced to release the dependence of polarization. In the proposed method here in this work, the lost properties due to unmatched polarizations are compensated for by the plasmonic resonance coupling between the patch and capped structure in the heterozygous dimer. By overlapping the two modes at the same wavelength, the absorption keeps rather stable undisturbed status during the variation of incident polarization. This work focuses on the theoretical exploration of the feasibility. Electromagnetic field in the interaction between light and heterozygous dimer is essential before extinction coefficient is calculated. The field of the model is obtained by solving Maxwell equations through using the finite element method. The numerical calculation presents a good understanding of the mechanism of the plasmonic interactions in the dimer, based on which the nanostructure with optimized configuration parameters can achieve the stable and high absorption in the near infrared wavelength.

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18

MALOMED, BORIS A., and RICHARD S. TASGAL. "THE RAMAN EFFECT AND SOLITONS IN AN ELLIPTICAL OPTICAL FIBER." Journal of Nonlinear Optical Physics & Materials 05, no. 03 (July 1996): 559–74. http://dx.doi.org/10.1142/s0218863596000386.

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We derive a general system of coupled nonlinear Schrödinger equations, describing light in a bimodal optical fiber, taking into account the quasi-instantaneous Raman effect, group-velocity birefringence, phase-velocity birefringence, and optical activity, and for light with general ellipticity. The Raman coefficients prove to obey a relation which depends on the ellipticity. When group-velocity birefringence and optical activity are both non-zero, polarization couples to the changing frequency, so soliton polarization cannot be held constant in this case. Without optical activity, there are solitons with constant polarization either entirely in one polarization (“simple”) or equally divided between the two polarizations (“vector”). At ellipticity angle 0° to 35.3°, the simple solitons are stable and the vector solitons are unstable, and vice versa for ellipticity angle 35.3° to 90°. With optical activity, the polarization can be constant, but with a rather more complex form. Stability is also examined, and bistability is found in some circumstances.

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19

Golde, Jonas, Lars Kirsten, and Edmund Koch. "Polarization sensitive optical coherence tomography utilizing a buffered swept source laser." Current Directions in Biomedical Engineering 3, no. 2 (September 7, 2017): 227–30. http://dx.doi.org/10.1515/cdbme-2017-0047.

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AbstractWe present an approach for polarization sensitive optical coherence tomography (PS-OCT) that solely requires a modification of the light source, a buffered swept source laser. For this purpose a single-mode fiber-based Fourier domain mode locked laser is extended by fourfold buffering with manual fiber polarization controllers to emit alternating sweep polarizations, while the polarization contrast calibration is realized by a high-speed polarimeter. As the introduced setup utilizes standard scanning and detection units, the proposed method is a promising way to enhance various swept source OCT systems by polarization sensitive imaging. Preliminary measurements of a human finger nail with different polarization contrasts demonstrate the feasibility of the concept.

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20

Bushev, P. A., V. P. Karassiov, A. V. Masalov, and A. A. Putilin. "Biphoton light with hidden polarization and its polarization tomography." Optics and Spectroscopy 91, no. 4 (October 2001): 526–31. http://dx.doi.org/10.1134/1.1412666.

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21

Zang, Jinliang, An’an Wu, Ying Liu, Jue Wang, Xiao Lin, Xiaodi Tan, Tsutomu Shimura, and Kazuo Kuroda. "Characteristics of volume polarization holography with linear polarization light." Optical Review 22, no. 5 (July 24, 2015): 829–31. http://dx.doi.org/10.1007/s10043-015-0122-5.

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22

Kotlyar, Victor V., Anton G. Nalimov, and Sergey S. Stafeev. "Focusing a Vortex Laser Beam with Polarization Conversion." Photonics 8, no. 11 (October 28, 2021): 480. http://dx.doi.org/10.3390/photonics8110480.

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We show that when strongly focusing a linearly polarized optical vortex with the topological charge 2 (or −2) in the near-focus region, there occurs not only a reverse energy flow (where the projection of the Poynting vector is negative) but the right- (or left-) handed circular polarization of light as well. Notably, thanks to spin–orbital conversion, the on-axis polarization vector handedness is the same as that of the transverse energy flow, i.e., anticlockwise (clockwise). An absorbing spherical microparticle centered on the optical axis placed in the focus may be expected to rotate anticlockwise (clockwise) around its axis and its center of masses. We also show that in the case of sharp focusing of light with linear polarization (without an optical vortex) before and after focus, the light has an even number of local regions with left- and right-handed circular (elliptical) polarizations. Theoretical predictions are corroborated by the numerical simulation.

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23

Dai, Jin, Shihong Wang, Gang Song, Li Yu, Lulu Wang, and Jinghua Xiao. "Plasmon-enhanced polarization-selective filter based on multiple holes array filled with nonlinear medium." Modern Physics Letters B 28, no. 16 (June 23, 2014): 1450130. http://dx.doi.org/10.1142/s0217984914501309.

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In this paper, a plasmon-enhanced polarization-selective filter is theoretically investigated in a structure composed of multiple holes array by filling it with nonlinear medium. The system combines the characteristics of selectable wavelength, enhanced transmission, polarization separation and output control by the intensity of incident light. As the incident light intensity approaches terawatt range, the optical bistability phenomenon appears only in y-polarization for one mode, while it appears in both x- and y-polarizations for the other mode, which is controlled by the coefficient of finesse F caused by the mirror reflectivity. Our findings demonstrate a feasible method for constructing nanoscale optical logical gates, filters, and all-optical switches; this method might be helpful for integrated optical circuits and on-chip optical interconnects.

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24

Kumar, Basant, Priyanka Lochab, Esha Baidya Kayal, Devinder P. Ghai, P. Senthilkumaran, and Kedar Khare. "Speckle in polarization structured light." Journal of Modern Optics 69, no. 1 (November 5, 2021): 47–54. http://dx.doi.org/10.1080/09500340.2021.1996646.

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25

Kryuchkov, Mikhail, Vladimir Savitsky, Bodo D. Wilts, Elmer Gray, and Vladimir L. Katanaev. "Light Polarization by Biological Nanocoatings." ACS Applied Materials & Interfaces 13, no. 20 (May 11, 2021): 23481–88. http://dx.doi.org/10.1021/acsami.1c05049.

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26

Hutchin, Richard A. "The Third Polarization of Light." Optics and Photonics Journal 05, no. 02 (2015): 29–32. http://dx.doi.org/10.4236/opj.2015.52004.

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27

Grangier, P., R. E. Slusher, B. Yurke, and A. LaPorta. "Squeezed-light–enhanced polarization interferometer." Physical Review Letters 59, no. 19 (November 9, 1987): 2153–56. http://dx.doi.org/10.1103/physrevlett.59.2153.

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28

SHIELDS, JANET. "Polarization Experiments with Light Waves." Optics and Photonics News 4, no. 11 (November 1, 1993): 58. http://dx.doi.org/10.1364/opn.4.11.000058.

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29

Yang, Zhice, Zeyu Wang, Jiansong Zhang, Chenyu Huang, and Qian Zhang. "Polarization-Based Visible Light Positioning." IEEE Transactions on Mobile Computing 18, no. 3 (March 1, 2019): 715–27. http://dx.doi.org/10.1109/tmc.2018.2838150.

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30

Huck, Nina P. M., Ilja Staupe, Alexandre Thirouard, and Dick K. G. de Boer. "Light Polarization by Cholesteric Layers." Japanese Journal of Applied Physics 42, Part 1, No. 8 (August 15, 2003): 5189–94. http://dx.doi.org/10.1143/jjap.42.5189.

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31

Uy, Chi-Hak, Lionel Weicker, Damien Rontani, and Marc Sciamanna. "Optical chimera in light polarization." APL Photonics 4, no. 5 (May 2019): 056104. http://dx.doi.org/10.1063/1.5089714.

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32

Verbiest, Thierry, Martti Kauranen, and André Persoons. "Light-Polarization-Induced Optical Activity." Physical Review Letters 82, no. 18 (May 3, 1999): 3601–4. http://dx.doi.org/10.1103/physrevlett.82.3601.

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33

Reshetov, V. A., and I. V. Meleshko. "Polarization properties of ‘slow’ light." Optics Communications 309 (November 2013): 192–95. http://dx.doi.org/10.1016/j.optcom.2013.07.027.

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34

Prakash, Ranjana, and Namrata Shukla. "Polarization squeezing in polarized light." Optics Communications 284, no. 14 (July 2011): 3568–70. http://dx.doi.org/10.1016/j.optcom.2011.03.047.

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35

Paul, H., and J. Wegmann. "Polarization correlations in unpolarized light." Optics Communications 112, no. 1-2 (November 1994): 85–90. http://dx.doi.org/10.1016/0030-4018(94)90084-1.

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36

Melikian, N. D. "Light polarization of Mira stars." Astrophysics 39, no. 4 (October 1996): 321–26. http://dx.doi.org/10.1007/bf02077202.

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37

Shevchenko, Andriy, Matthieu Roussey, Ari T. Friberg, and Tero Setälä. "Polarization time of unpolarized light." Optica 4, no. 1 (January 6, 2017): 64. http://dx.doi.org/10.1364/optica.4.000064.

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38

Mukhin, Y. V., Y. R. Gataullina, and N. D. Kundikova. "THE POLARISATION EFFECTS OF LIGHT REFLECTION FROM THE INTERFACE WITH A UNIAXIAL CRYSTAL." Bulletin of the South Ural State University series "Mathematics. Mechanics. Physics" 15, no. 2 (2023): 66–72. http://dx.doi.org/10.14529/mmph230209.

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In this paper, the boundary conditions for plane electromagnetic waves at the interface between an isotropic medium and a uniaxial crystal have been obtained and analyzed. Elements of the reflection matrix that relates components of the electric field of the reflected wave back to those of the incident electromagnetic wave have been determined. Using the elements of the reflection matrix, we show that the possibility exists for polarization of light to be preserved upon reflection at the interface with anisotropic media. The conditions for the Jones vectors conservation upon reflection from the surface of a uniaxial crystal are obtained. The existence of the Brewster effect at the interface with such an anisotropic medium has been studied and verified. The Brewster’s polarizations have been shown to be almost p-polarizations with just little admixture of s-polarization.

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39

Zhang, Xin, Xia Wang, Changda Yan, Gangcheng Jiao, and Huiyang He. "Polarization-Based Two-Stage Image Dehazing in a Low-Light Environment." Electronics 13, no. 12 (June 10, 2024): 2269. http://dx.doi.org/10.3390/electronics13122269.

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Fog, as a common weather condition, severely affects the visual quality of images. Polarization-based dehazing techniques can effectively produce clear results by utilizing the atmospheric polarization transmission model. However, current polarization-based dehazing methods are only suitable for scenes with strong illumination, such as daytime scenes, and cannot be applied to low-light scenes. Due to the insufficient illumination at night and the differences in polarization characteristics between it and sunlight, polarization images captured in a low-light environment can suffer from loss of polarization and intensity information. Therefore, this paper proposes a two-stage low-light image dehazing method based on polarization. We firstly construct a polarization-based low-light enhancement module to remove noise interference in polarization images and improve image brightness. Then, we design a low-light polarization dehazing module, which combines the polarization characteristics of the scene and objects to remove fog, thereby restoring the intensity and polarization information of the scene and improving image contrast. For network training, we generate a simulation dataset for low-light polarization dehazing. We also collect a low-light polarization hazy dataset to test the performance of our method. Experimental results indicate that our proposed method can achieve the best dehazing effect.

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40

Shukla, Namrata, and Ranjana Prakash. "Alteration in non-classicality of light on passing through a linear polarization beam splitter." Modern Physics Letters B 30, no. 21 (August 10, 2016): 1650289. http://dx.doi.org/10.1142/s0217984916502894.

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We observe the polarization squeezing in the mixture of a two mode squeezed vacuum and a simple coherent light through a linear polarization beam splitter. Squeezed vacuum not being squeezed in polarization, generates polarization squeezed light when superposed with coherent light. All the three Stokes parameters of the light produced on the output port of polarization beam splitter are found to be squeezed and squeezing factor also depends upon the parameters of coherent light.

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41

Salih, Salwa, and Shelan Tawfeeq. "Performance Study of Polarization Beam Splitters Based on Horizontal Slot Waveguide Operating at 700nm Wavelength." Iraqi Journal of Laser 22, no. 1 (October 11, 2023): 51–58. http://dx.doi.org/10.31900/ijl.v22i1.391.

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Abstract: Polarization beam splitter (PBS) integrated waveguides are the key components in the receiver of quantum key distribution (QKD) systems. Their function is to analyze the polarization of polarized light and separate the transverse-electric (TE) and transverse-magnetic (TM) polarizations into different waveguides. In this paper, a performance study of polarization beam splitters based on horizontal slot waveguide has been investigated for a wavelength of . PBS based on horizontal slot waveguide structure shows a polarization extinction ratio for quasi-TE and quasi-TM modes larger than with insertion loss below and a bandwidth of . Also, the fabrication tolerance of the structure is analyzed.

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Kotlyar, Victor V., Alexey A. Kovalev, and Vladislav D. Zaitsev. "Topological Charge of Light Fields with a Polarization Singularity." Photonics 9, no. 5 (April 27, 2022): 298. http://dx.doi.org/10.3390/photonics9050298.

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We have studied diverse vector and hybrid light fields, including those with multiple polarization singularities, and have derived relationships for polarization singularity indices based on the familiar Berry formula, which is normally utilized to find the topological charge of a scalar vortex light field. The fields with pure polar-angle-dependent polarization in the beam cross-section are shown to feature either polarization singularity lines outgoing from the center or a single polarization singularity point at the beam center. The fields with pure radial-variable-dependent polarization are shown to have no polarization singularities and zero polarization index. The vector fields with both polar-angle- and radial-variable-dependent polarization are shown to have multiple polarization singularity points that are scattered across the cross-section. A vector field with higher-order radial polarization and a real parameter was also studied and was shown to feature either several polarization singularity lines outgoing from the center or a central singular point, depending on the parameter value. Notably, at different parameter values, the polarization singularity index of such a field can take half-integer, integer, or zero values.

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Volokitina, A., P. Loiko, E. Dunina, A. Kornienko, J. M. Serres, M. Aguiló, F. Díaz, A. Pavlyuk, and X. Mateos. "Polarized spectroscopy of electric and magnetic dipole transitions of Europium (III) ions in C₂ sites." Journal of Physics: Conference Series 2086, no. 1 (December 1, 2021): 012175. http://dx.doi.org/10.1088/1742-6596/2086/1/012175.

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Abstract Polarization anisotropy of luminescent properties of europium (III) ions in low-symmetry C2 sites is studied using monoclinic (sp. gr. C2/c) tungstate crystal KY(WO4)2. The 5D0 → 7FJ (where J = 0…6) transitions are characterized for the principal light polarizations. Polarization selection rules for the magnetic dipole 5D0 → 7F1 transition are presented. The stimulated-emission cross-sections for Eu3+ ions relevant for laser operation are determined.

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Emile, Olivier, Fabien Bretenaker, and Albert Le Floch. "Rotating Polarization Probing of Elastic and Inelastic Scatterings." Modern Physics Letters B 11, no. 06 (March 10, 1997): 219–38. http://dx.doi.org/10.1142/s0217984997000293.

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The recent technical advances in the creation of rapidly rotating light polarizations are shown to provide new tools to explore elastic and inelastic scattering phenomena. In the case of inelastic scattering, the light fluoresced by atoms or molecules coherently excited by a rapidly rotating linear polarization is expected to exhibit new resonances. Such resonances, due to the transfer of coherence from light to atoms or molecules, are theoretically studied and experimentally observed. They provide simple methods to probe atomic internal constants, such as energy level life-times. The analogy between those resonances and the Hanle effect suggests new experiments in atomic physics. In the case of elastic scattering such as the one encountered during propagation through a dense turbid medium, the rotating linear polarization is shown to be an ideal tool to extract the ballistic photons from the large background of diffused light. This permits to image tiny objects embedded in a dense turbid medium, with an experimental resolution similar to the one obtained in usual homogeneous optical system.

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Wang, Xiangke, Wanling Wu, Yipeng Lun, Huakang Yu, Qihua Xiong, and Zhi-yuan Li. "Polarization-Dependent Lateral Optical Force of Subwavelength-Diameter Optical Fibers." Micromachines 10, no. 10 (September 21, 2019): 630. http://dx.doi.org/10.3390/mi10100630.

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It is highly desirable to design optical devices with diverse optomechanical functions. Here, we investigate lateral optical force exerted on subwavelength-diameter (SD) optical fibers harnessed by input light modes with different polarizations. It is interesting to find that input light modes of circular or elliptical polarizations would bring about lateral optical force in new directions, which has not been observed in previous studies. By means of finite-difference time-domain (FDTD) simulations, detailed spatial distributions of the asymmetric transverse force density are revealed, meanwhile dependence of optical force on input light polarizations, fiber diameters, and inclination angles of fiber endfaces are all carefully discussed. It is believed that polarization-sensitive reflection, refraction, and diffraction of optical fields occur at the interface, i.e., fiber oblique endfaces, resulting in asymmetrically distributed optical fields and thereafter non-zero transverse optical force. We believe our new findings could be helpful for constructing future steerable optomechanical devices with more flexibility.

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Chirkin, A. S. "Polarization-squeezed light and quantum degree of polarization (A review)." Optics and Spectroscopy 119, no. 3 (September 2015): 371–76. http://dx.doi.org/10.1134/s0030400x15090052.

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Sasaki, Tomoyuki, Akira Hatayama, Akira Emoto, Hiroshi Ono, and Nobuhiro Kawatsuki. "Simple detection of light polarization by using crossed polarization gratings." Journal of Applied Physics 100, no. 6 (September 15, 2006): 063502. http://dx.doi.org/10.1063/1.2345575.

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Klyshko, D. M. "Polarization of light: Fourth-order effects and polarization-squeezed states." Journal of Experimental and Theoretical Physics 84, no. 6 (June 1997): 1065–79. http://dx.doi.org/10.1134/1.558243.

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Karassiov, V. P., and A. V. Masalov. "Quantum interference of light polarization states via polarization quasiprobability functions." Journal of Optics B: Quantum and Semiclassical Optics 4, no. 4 (August 1, 2002): S366—S371. http://dx.doi.org/10.1088/1464-4266/4/4/321.

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Li, Xing, Jing Tang, and Jonathan Baine. "Polarization-Independent Metasurface Lens Based on Binary Phase Fresnel Zone Plate." Nanomaterials 10, no. 8 (July 27, 2020): 1467. http://dx.doi.org/10.3390/nano10081467.

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Based on the binary phase Fresnel zone plate (FZP), a polarization-independent metasurface lens that is able to focus incident light with any polarization state, including circular, linear, and elliptical polarizations, has been proposed and investigated. We demonstrate that the metasurface lens consisting of metal subwavelength slits can operate in a wide bandwidth in the visible range, and has a higher focusing efficiency than that of an amplitude FZP lens without phase modulation. A multi-focus FZP metasurface lens has also been designed and investigated. The proposed lens can provide potential applications in integrated nanophotonic devices without polarization limitations.

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