Journal articles: 'Crystal polarizers'

1

Myhre, Graham, Arshad Sayyad, and Stanley Pau. "Patterned color liquid crystal polymer polarizers." Optics Express 18, no. 26 (2010): 27777. http://dx.doi.org/10.1364/oe.18.027777.

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Marć, Paweł, Noureddine Bennis, Anna Spadło, et al. "Monochromatic Depolarizer Based on Liquid Crystal." Crystals 9, no. 8 (2019): 387. http://dx.doi.org/10.3390/cryst9080387.

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Polarization is a very useful parameter of a light beam in many optical measurements. Improvement of holographic systems requires optical elements which need a diffused and depolarized light beam. This paper describes a simple monochromatic depolarizer based on a pure vertically aligned liquid crystal without pretilt. In this work we present an extended description of depolarizer by analyzing its electro-optic properties measured in spatial and time domains with the use of crossed polarizers and polarimetric configurations. Crossed polarizers set-up provides information on spatial and temporal changes of microscopic textures while polarimetric measurement allows to measure voltage and time dependence of degree of polarization. Three different thicknesses, i.e., 5 μm, 10 μm and 15 μm have been manufactured in order to analyze another degree of freedom for this type of depolarizer device based on a liquid crystals’ material. Consideration of the light scattering capability of the cell is reported.

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Yamaguchi, Rumiko, Toshiaki Nose, and Susumu Sato. "Liquid Crystal Polarizers with Axially Symmetrical Properties." Japanese Journal of Applied Physics 28, Part 1, No. 9 (1989): 1730–31. http://dx.doi.org/10.1143/jjap.28.1730.

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Bobrov, Y., O. Kuchenkova, M. Kouznetsov, et al. "LCD applications of thin-crystal-film polarizers." Journal of the Society for Information Display 12, no. 2 (2004): 125. http://dx.doi.org/10.1889/1.1811433.

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Solli, D. R., C. F. McCormick, R. Y. Chiao, and J. M. Hickmann. "Photonic crystal polarizers and polarizing beam splitters." Journal of Applied Physics 93, no. 12 (2003): 9429–31. http://dx.doi.org/10.1063/1.1574174.

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Wu, Chiung-Sheng, and Shin-Tson Wu. "Liquid-crystal-based switchable polarizers for sensor protection." Applied Optics 34, no. 31 (1995): 7221. http://dx.doi.org/10.1364/ao.34.007221.

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Fiske, Thomas, Leonid Ignatov, Pavel Lazarev, Victor Nazarov, and Michael Paukshto. "26.2: Molecular Alignment in Crystal Polarizers and Retarders." SID Symposium Digest of Technical Papers 33, no. 1 (2002): 866. http://dx.doi.org/10.1889/1.1830919.

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8

Weder, C. "Incorporation of Photoluminescent Polarizers into Liquid Crystal Displays." Science 279, no. 5352 (1998): 835–37. http://dx.doi.org/10.1126/science.279.5352.835.

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9

Lin, Chi-Huang. "Optically compensated circular polarizers for liquid crystal displays." Optics Express 16, no. 17 (2008): 13276. http://dx.doi.org/10.1364/oe.16.013276.

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Oguchi, Kenichi, Makoto Okano, and Shinichi Watanabe. "Polarization-Sensitive Electro-Optic Sampling of Elliptically-Polarized Terahertz Pulses: Theoretical Description and Experimental Demonstration." Particles 2, no. 1 (2019): 70–89. http://dx.doi.org/10.3390/particles2010006.

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We review our recent works on polarization-sensitive electro-optic (PS-EO) sampling, which is a method that allows us to measure elliptically-polarized terahertz time-domain waveforms without using wire-grid polarizers. Because of the phase mismatch between the employed probe pulse and the elliptically-polarized terahertz pulse that is to be analyzed, the probe pulse senses different terahertz electric-field (E-field) vectors during the propagation inside the EO crystal. To interpret the complex condition inside the EO crystal, we expressed the expected EO signal by “frequency-domain description” instead of relying on the conventional Pockels effect description. Using this approach, we derived two important conclusions: (i) the polarization state of each frequency component can be accurately measured, irrespective of the choice of the EO crystal because the relative amplitude and phase of the E-field of two mutually orthogonal directions are not affected by the phase mismatch; and, (ii) the time-domain waveform of the elliptically-polarized E-field vector can be retrieved by considering the phase mismatch, absorption, and the effect of the probe pulse width. We experimentally confirm the above two conclusions by using different EO crystals that are used for detection. This clarifies the validity of our theoretical analysis based on the frequency-domain description and the usefulness of PS-EO sampling.

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ZHU, QUN, IAN M. STOCKFORD, JOHN A. CROWE, and STEPHEN P. MORGAN. "LIQUID CRYSTAL BASED ROTATING ORTHOGONAL POLARIZATION IMAGING SYSTEM." Journal of Innovative Optical Health Sciences 02, no. 03 (2009): 245–51. http://dx.doi.org/10.1142/s1793545809000553.

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Rotating orthogonal polarization imaging provides images of the polarization properties of scattering media which are free from surface reflections. Previously the technique has been demonstrated using manually rotated Glan–Thompson polarizers to control and analyze the polarization state of the light entering and emerging from the tissue. This paper describes a system that performs these functions using liquid crystal retarders. The system is tested using a polarizing target embedded within a scattering medium and is compared with Monte Carlo simulations. The results compare well with those obtained with manual rotation of polarizers. The liquid crystal based approach has advantages over the previous system in terms of ease of use, speed, and repeatability and is therefore an important step towards taking the technique into routine clinical use.

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Huang, Yuan Qing, Y. X. Lin, Z. L. Huang, L. M. Zhu, and Y. M. Chen. "A Polarized Optical Fiber Pressure Sensor with a Sampling Reference Optical Path." Key Engineering Materials 295-296 (October 2005): 545–50. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.545.

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The design of a polarized optical pressure fiber sensor system is presented. The system mainly consists of a laser, a birefringent crystal, a quarter wave plate, two polarizers, a sensing element and two photodetectors. The design of the sensing element is based on the photo-elastic effect. This type of sensor can be used to detect pressure, force and weight of an object. In addition, the sensor can be used to detect and to monitor the condition of overload of a vehicle real time and on line.

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13

Ren, Hongwen, and Shin-Tson Wu. "Anisotropic liquid crystal gels for switchable polarizers and displays." Applied Physics Letters 81, no. 8 (2002): 1432–34. http://dx.doi.org/10.1063/1.1502021.

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14

Yao, Y. F., Z. Z. Gu, J. Z. Zhang, C. Pan, Y. Y. Zhang, and H. M. Wei. "Fiber-Oriented Liquid Crystal Polarizers Based on Anisotropic Electrospinning." Advanced Materials 19, no. 21 (2007): 3707–11. http://dx.doi.org/10.1002/adma.200701212.

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15

Ge, Zhibing, Ruibo Lu, Thomas X. Wu, et al. "Extraordinarily wide-view circular polarizers for liquid crystal displays." Optics Express 16, no. 5 (2008): 3120. http://dx.doi.org/10.1364/oe.16.003120.

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16

Ropars, Guy, Gabriel Gorre, Albert Le Floch, Jay Enoch, and Vasudevan Lakshminarayanan. "A depolarizer as a possible precise sunstone for Viking navigation by polarized skylight." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468, no. 2139 (2011): 671–84. http://dx.doi.org/10.1098/rspa.2011.0369.

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Viking navigation from Norway to America in the northern latitudes remains a mystery for physicists, historians and archaeologists. Polarimetric methods using absorbing dichroic crystals as polarizers to detect a hidden Sun direction using the polarized skylight have led to controversies. Indeed, these techniques may lack in sensitivity, especially when the degree of polarization is low. Here, we demonstrate theoretically and experimentally that using the transparent common Iceland spar as a depolarizer, the Vikings could have performed a precise navigation under different conditions. Indeed, when simply rotated, such a birefringent crystal can completely depolarize, at the so-called isotropy point, any partially polarized state of light, allowing us to guess the direction of the Sun. By equalizing the intensities of the ordinary and extraordinary beams at the isotropy point, we show that the Sun direction can be determined easily, thanks to a simple sensitive differential two-image observation. A precision of a few degrees could be reached even under dark crepuscular conditions. The exciting recent discovery of such an Iceland spar in the Alderney Elizabethan ship that sank two centuries before the introduction of the polarization of light in optics may support the use of the calcite crystal for navigation purposes.

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Pramanick, A., V. Lauter, X. L. Wang, et al. "Polarized neutron diffraction at a spallation source for magnetic studies." Journal of Applied Crystallography 45, no. 5 (2012): 1024–29. http://dx.doi.org/10.1107/s0021889812034474.

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The availability of high-power spallation neutron sources, along with advances in the development of coupled moderators and neutron polarizers, has made it possible to use polarized neutrons on time-of-flight diffractometers forin situstudies of phenomena contributing to field-induced magnetization of a material. Different electronic and structural phenomena that contribute to the overall magnetization of a material can be studied and clearly identified with polarized neutron diffraction measurements. This article reports the first results from polarized neutron diffraction experiments on a time-of-flight instrument at a spallation source. Magnetic field-induced rotation of electron spins in an Ni–Mn–Ga single crystal was measured with polarized neutron diffraction at the MAGICS reflectometer at the Spallation Neutron Source at Oak Ridge National Laboratory. The difference in intensities measured with spin-up and spin-down polarized neutrons is proportional to the field-induced magnetization of the crystal. The polarized neutron measurements indicate that the magnetic form factor for the 3delectrons of Mn in Ni–Mn–Ga is lower than the value reported earlier for an ideal spherical symmetry of electronic distribution. Future experiments for studying field-induced magnetization in materials following the current methodology are outlined.

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18

Buchen, Johannes, Volker Wesemann, Steffen Dehmelt, Andreas Gross, and Daniel Rytz. "Twins in YAl3(BO3)4 and K2Al2B2O7 Crystals as Revealed by Changes in Optical Activity." Crystals 9, no. 1 (2018): 8. http://dx.doi.org/10.3390/cryst9010008.

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Many borate crystals feature nonlinear optical properties that allow for efficient frequency conversion of common lasers down into the ultraviolet spectrum. Twinning may degrade crystal quality and affect nonlinear optical properties, in particular if crystals are composed of twin domains with opposing polarities. Here, we use measurements of optical activity to demonstrate the existence of inversion twins within single crystals of YAl 3 (BO 3 ) 4 (YAB) and K 2 Al 2 B 2 O 7 (KABO). We determine the optical rotatory dispersion of YAB and KABO throughout the visible spectrum using a spectrophotometer with rotatable polarizers. Space-resolved measurements of the optical rotation can be related to the twin structure and give estimates on the extent of twinning. The reported dispersion relations for the rotatory power of YAB and KABO may be used to assess crystal quality and to select twin-free specimens.

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Romagnoli, Priscila, Claudecir R. Biazoli, Marcos A. R. Franco, Cristiano M. B. Cordeiro, and Christiano J. S. de Matos. "Integrated polarizers based on tapered highly birefringent photonic crystal fibers." Optics Express 22, no. 15 (2014): 17769. http://dx.doi.org/10.1364/oe.22.017769.

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20

Birgerson, Jonas, Muhammed M. Selo, Anette Lindsjö, and Kent Skarp. "P-88: Stabilization of Thin Crystal Film Polarizers for LCD's." SID Symposium Digest of Technical Papers 35, no. 1 (2004): 590. http://dx.doi.org/10.1889/1.1831047.

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21

Bobrov, Y., L. Blinov, L. Ignatov, et al. "Environmental and optical testing of Thin Crystal Film™ polarizers." Journal of the Society for Information Display 11, no. 1 (2003): 63. http://dx.doi.org/10.1889/1.1831721.

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22

Liu, Gui-Geng, Yun-Han Lee, Yuge Huang, et al. "Dielectric broadband meta-vector-polarizers based on nematic liquid crystal." APL Photonics 2, no. 12 (2017): 126102. http://dx.doi.org/10.1063/1.5006016.

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23

Umeda, T., F. Nakano, Y. Hori, S. Matsuyama, and K. Sasaki. "A liquid-crystal display panel using polarizers as panel substrates." IEEE Transactions on Electron Devices 34, no. 4 (1987): 804–9. http://dx.doi.org/10.1109/t-ed.1987.22999.

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24

Sigrist, Jessica A., Erick S. Lins, Tyler A. Morhart, Jenni L. Briggs, and Ian J. Burgess. "Optimization of a Commercial Variable Angle Accessory for Entry Level Users of Electrochemical Attenuated Total Reflection Surface-Enhanced Infrared Absorption Spectroscopy (ATR-SEIRAS)." Applied Spectroscopy 73, no. 12 (2019): 1394–402. http://dx.doi.org/10.1177/0003702819858353.

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An evaluation of several experimental aspects that can optimize electrochemical attenuated total reflection surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) performance using a commercially available, specular reflection accessory is provided. A comparison of different silicon single-bounce internal reflection elements (IREs) is made with emphasis on different face-angled crystal (FAC) options. Selection of optimal angle of incidence for maximizing signal and minimizing noise is shown to require consideration of the optical throughput of the accessory, reflection losses at the crystal surfaces, and polarization effects. The benefits of wire-grid polarizers and antireflective (AR) coatings on the IREs is discussed. High signal-to-noise ratios can be achieved by omitting polarizers, using an AR-coated FAC with a larger face angle, and working at angles of incidence close to the maximum throughput angle of the accessory.

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25

Dikusar, E. I., L. I. Filippovich, S. N. Shahab, S. K. Petkevich, and S. G. Stepin. "(E,E)-diazomethines based on naphthalene-1,5-diamine and the study of their polarizrization properties." Proceedings of the National Academy of Sciences of Belarus, Chemical Series 56, no. 1 (2020): 67–74. http://dx.doi.org/10.29235/1561-8331-2020-56-1-67-74.

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Liquid crystal devices are widely used in measuring instrumentation, consumer and industrial electronics, medical, scientific and military equipment. The production of these devices is a promising and developing industry. Analysis of the market of liquid crystal devices suggests that the demand for film polarizers of transmission, reflection and transmission reflection types will increase due to the constant growth of production of liquid crystal indicators and the expansion of their applications. Studies aimed at the creation of film polarizers for various functional purposes and the development of technologies for their manufacture are relevant. Naphthalene-1,5-diamine widely used in the production of complex intermediate intermediates, dyes, chemical additives to polymers, pharmaceuticals, pesticides, etc. Naphthalene-1,5-diamine is an available starting compound for obtaining on its base promising substances for the development of optical materials and biologically active compounds. By interaction of naphthalene-1,5-diamine with substituted aldehydes or benzaldehydes of vanillin series in the medium of boiling absolute methanol in the presence of catalytic amounts of glacial acetic acid, (E,E)-diazomethines with yields of 75–87 % were synthesized.

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Zhou, Ji Wei, Guang Ming Ke, Bin Wang, Wei Dong Liu, and Rui Xing Li. "Calculation and Prediction: An Effective Security Device Consisted of Photo Alignment Nematic Liquid Crystal Films and Polarizers." Key Engineering Materials 428-429 (January 2010): 301–4. http://dx.doi.org/10.4028/www.scientific.net/kem.428-429.301.

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The paper reports the methods for making a novel optical device consisted of photo alignment nematic liquid crystal films and polarizers. The color shift of the device depends on not only the viewing angle but also the viewing orientation. The retardation and intensity of the reflected light are theoretically calculated on the basis of Jones Matrix, and a spectral-RGB transition program is introduced to display colorful results directly. The theoretical results show excellent agreement with experimental data. It is an effective method for predicting interference color and optimizing key parameters of the device. The device can be used to protect valuable documents against fraud because of its special optical variable effects which is caused by interference of polarized light.

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Gardymova, Anna P., Mikhail N. Krakhalev, Victor Ya Zyryanov, Alexandra A. Gruzdenko, Andrey A. Alekseev, and Vladimir Yu Rudyak. "Polymer Dispersed Cholesteric Liquid Crystals with a Toroidal Director Configuration under an Electric Field." Polymers 13, no. 5 (2021): 732. http://dx.doi.org/10.3390/polym13050732.

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The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

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BERGGREN, ELISABET, CLAUDIO ZANNONI, CESARE CHICCOLI, PAOLO PASINI, and FRANCO SEMERIA. "A MONTE CARLO SIMULATION OF A TWISTED NEMATIC LIQUID CRYSTAL DISPLAY." International Journal of Modern Physics C 06, no. 01 (1995): 135–41. http://dx.doi.org/10.1142/s0129183195000113.

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We present a Monte Carlo simulation of a model of a twisted nematic display on a lattice starting from purely microscopic interactions. We visualize the simulated display calculating optical textures under crossed polarizers corresponding to the Monte Carlo microscopic configurations. We also investigate the orientational order and the molecular organizations in the different regions of the lattice, introducing and calculating suitable order parameters.

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Zhibing Ge, Meizi Jiao, Ruibo Lu, et al. "Wide-View and Broadband Circular Polarizers for Transflective Liquid Crystal Displays." Journal of Display Technology 4, no. 2 (2008): 129–38. http://dx.doi.org/10.1109/jdt.2008.920178.

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30

Iwamoto, Yoshihisa, and Yasufumi Iimura. "Transmittance Enhancement for Randomly Aligned Liquid Crystal Displays with Circular Polarizers." Japanese Journal of Applied Physics 41, Part 2, No. 12A (2002): L1383—L1385. http://dx.doi.org/10.1143/jjap.41.l1383.

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31

Li, Lili, and Limin Xiao. "Plasmonic Nodeless Hollow-Core Photonic Crystal Fibers for In-Fiber Polarizers." Journal of Lightwave Technology 37, no. 20 (2019): 5199–211. http://dx.doi.org/10.1109/jlt.2019.2930075.

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32

Kwon, Y. J., W. J. Lee, S. H. Paek, I. Kim, and K. Song. "Wide-Band Reflective Polarizers from Variable Pitch Cholesteric Liquid Crystal Films." Molecular Crystals and Liquid Crystals 377, no. 1 (2002): 325–28. http://dx.doi.org/10.1080/10587250211665.

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33

OLORUNSOLA, OLUWATOBI, OLUWASEYE DADA, and PENGQIAN WANG. "A SPINNING POLARIZER AND SPINNING ANALYZER METHOD FOR VISUALIZING THE ISOCHROMATES IN CONOSCOPIC INTERFEROMETERS." International Journal of Modern Physics B 27, no. 30 (2013): 1350175. http://dx.doi.org/10.1142/s0217979213501750.

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We have developed a spinning polarizer and spinning analyzer (SPSA) method to visualize the whole isochromatic fringes in conoscopic interferometers for the study of optically anisotropic materials. This simple method completely eliminates the broad and dark isogyre fringes appearing in a conventional conoscopic interferometer where a linear polarizer and a linear analyzer (LPLA) are used. Our method allows the direct visualization of the isochromates on the viewing screen by eyes in real time, without the need of additional optics or detectors other than those used in a conventional conoscopic interferometer, and no additional computation is required. This method works at any polarization state of the input light, and at any wavelength permitted by the polarizers. In the case of polychromatic illumination our method reveals the isochromates of all colors indiscriminatively, in comparison to the method of circular polarizer and circular analyzer (CPCA), which is considerably subject to spectrum modulation due to the dispersion in the retardation of the quarter-wave plates. The proposed method is demonstrated in a lithium niobate ( LiNbO 3) crystal driven by an external electric field.

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Tarquini, Simone, and Pietro Armienti. "QUICK DETERMINATION OF CRYSTAL SIZE DISTRIBUTIONS OF ROCKS BY MEANS OF A COLOR SCANNER." Image Analysis & Stereology 22, no. 1 (2011): 27. http://dx.doi.org/10.5566/ias.v22.p27-34.

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An acquisition and analysis method based on a commercial, low-cost, high-resolution film scanner is presented. It allows to collect data from standard rock thin sections with a resolution up to 9.4 μm per pixel. Common and general purpose facilities (scanner + PC + image analysis software) may thus be transformed in an appropriate tool for quantitative textural analysis of rocks. The procedure implies the acquisition of four images with crossed polarizers and one parallel light image. Crystal boundaries are extracted from fields in crossed polarizers, while markers for mineral recognition are obtained thresholding the parallel light image. The method is tested for fresh rocks with simple mineralogy (harzburgites and marbles) with no more than three phases, all exhibiting well distinct optical properties. Image processing is performed developing procedures with VISILOG 5.2 package. 2-D size data from binary images are converted to 3-D size data applying stereological corrections. 3-D data are reported in bi-logarithmic diagrams, plotting the crystal number density versus characteristic lengths. The harzburgite samples show a scale invariance of size distributions of olivine while mosaic equant marbles exhibit a different size distribution pattern, without scale invariance and a relative maximum.

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Kazanskiy, Nikolai Lvovich, and Muhammad Ali Butt. "One-dimensional photonic crystal waveguide based on SOI platform for transverse magnetic polarization-maintaining devices." Photonics Letters of Poland 12, no. 3 (2020): 85. http://dx.doi.org/10.4302/plp.v12i3.1044.

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In this letter, a TM-polarization C-band pass one-dimensional photonic crystal strip waveguide (1D-PCSW) is presented. The waveguide structure is based on a silicon-on-insulator platform which is easy to realize using standard CMOS technology. The numerical study is conducted via 3D-finite element method (FEM). The transmittance and polarization extinction ratio (PER) is enhanced by optimizing the geometric parameters of the device. As a result, a TM polarized light can travel in the waveguide with ~2 dB loss for all C-band telecommunication wavelength window whereas the TE polarized light suffers a high transmission loss of >30 dB. As a result, a PER of ~28.5 dB can be obtained for the whole C-band wavelengths range. The total length of the proposed device is around 8.4 µm long including 1 µm silicon strip waveguide segment on both ends. Based on our study presented in this paper, several photonic devices can be realized where strict polarization filtering is required. Full Text: PDF ReferencesB. Wang, S. Blaize, R.S-Montiel, "Nanoscale plasmonic TM-pass polarizer integrated on silicon photonics", Nanoscale, 11, 20685 (2019). CrossRef D. Dai, J.E. Bowers, "Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects", Nanophotonics, 3, 283 (2014). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, "Optical elements based on silicon photonics", Computer Optics, 43, 1079 (2019). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, "Compact design of a polarization beam splitter based on silicon-on-insulator platform", Laser Physics, 28, 116202 (2018). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, "A T-shaped 1 × 8 balanced optical power splitter based on 90° bend asymmetric vertical slot waveguides", Laser Physics, 29, 046207 (2019). CrossRef Q. Wang, S.-T. Ho, "Ultracompact TM-Pass Silicon Nanophotonic Waveguide Polarizer and Design", IEEE Photonics J., 2, 49 (2010). CrossRef C.-H. Chen, L. Pang, C.-H. Tsai, U. Levy, Y. Fainman, "Compact and integrated TM-pass waveguide polarizer", Opt. Express, 13, 5347 (2005). CrossRef S. Yuan, Y. Wang, Q. Huang, J. Xia, J. Yu, "Ultracompact TM-pass/TE-reflected integrated polarizer based on a hybrid plasmonic waveguide for silicon photonics", in 11th International Conference on Group IV Photonics (GFP) (IEEE, 2014), pp. 183-184. CrossRef X. Guan, P. Chen, S. Chen, P. Xu, Y. Shi, D. Dai, "Low-loss ultracompact transverse-magnetic-pass polarizer with a silicon subwavelength grating waveguide", Opt. Lett., 39, 4514 (2014). CrossRef A.E.- S. Abd-Elkader, M.F. O. Hameed, N.F. Areed, H.E.-D. Mostafa, and S.S. Obayya, "Ultracompact AZO-based TE-pass and TM-pass hybrid plasmonic polarizers", J.Opt. Soc. Am. B., 36, 652 (2019). CrossRef J. Li et al., "Photonic Crystal Waveguide Electro-Optic Modulator With a Wide Bandwidth", Journal of Lightwave Technology, 31, 1601-1607 (2013). CrossRef N. Skivesen et al., "Photonic-crystal waveguide biosensor", Optics Express, 15, 3169-3176 (2007). CrossRef S. Lin, J. Hu, L. Kimerling, K. Crozier, "Design of nanoslotted photonic crystal waveguide cavities for single nanoparticle trapping and detection", Optics Letters, 34, 3451-3453 (2009). CrossRef T. Liu, A.R. Zakharian, M. Fallahi, J.V. Moloney, M. Mansuripur, "Design of a compact photonic-crystal-based polarizing beam splitter", IEEE Photonics Technology Letters, 17, 1435-1437 (2005). CrossRef R. K. Sinha, Y. Kalra, "Design of optical waveguide polarizer using photonic band gap", Optics Express, 14, 10790 (2006). CrossRef

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36

Lu, Shin Ying, and Liang Chy Chien. "Electrically Switched Liquid Crystal Color and Device Applications." Key Engineering Materials 428-429 (January 2010): 24–28. http://dx.doi.org/10.4028/www.scientific.net/kem.428-429.24.

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We demonstrate a polymer-stabilized cholesteric liquid crystal (PSChLC) where the reflected color can be electrically-switched to reflect a different color at a shorter wavelength (blue-shift). A polymerizable additive formulation is used to ensure a wider range of color tuning and anisotropic reflection where on side reflects and the other side transmits the incident light in response to applied voltage. A second electrically switched color based on polymer-stabilized blue phase (PSBP) liquid crystal is also demonstrated. Applying an electric field across the cell results in a red-shift in Bragg reflected wavelength due to the electrostriction effect. These switchable color devices of are color filters and polarizers free which are suitable for electronic papers.

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Jin, Hye-Jung, Ki-Han Kim, Kyoung-Ho Park, Phil-Kook Son, Jae-Chang Kim, and Tae-Hoon Yoon. "Fabrication of a Liquid Crystal Cell Using ITO-deposited Polarizers as Substrates." Korean Journal of Optics and Photonics 22, no. 2 (2011): 90–95. http://dx.doi.org/10.3807/kjop.2011.22.2.090.

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38

Son, Phil Kook, Suk-Won Choi, Sung Soo Kim, and Seok-Cheol Ko. "Plastic Liquid Crystal Display with Polarizers Integrated Inorganic Conducting and Alignment Layers." Molecular Crystals and Liquid Crystals 583, no. 1 (2013): 52–59. http://dx.doi.org/10.1080/15421406.2013.844221.

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39

Tien, Chuen-Lin, Rong-Ji Lin, and Shang-Min Yeh. "Light Leakage of Multidomain Vertical Alignment LCDs Using a Colorimetric Model in the Dark State." Advances in Condensed Matter Physics 2018 (June 3, 2018): 1–6. http://dx.doi.org/10.1155/2018/6386428.

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Light leakage from liquid crystal displays in the dark state is relatively larger and leads to a degraded contrast ratio and color shift. This work describes a novel colorimetric model based on the Muller matrix that includes depolarization of light propagating through liquid crystal molecules, polarizers, and color filters. In this proposed model, the chromaticity can be estimated in the bump and no-bump regions of an LCD. We indicate that the difference between simulation and measurement of chromaticity is about 0.01. Light leakage in the bump region is three times that in no-bump region in the dark state.

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Masnic, Alisa, Victor Zalamai, and Veaceslav Ursaki. "OPTICAL ANISOTROPY AND BIREFRINGENCE OF CuAlS2 CRYSTALS." Journal of Engineering Science XXVIII, no. 2 (2021): 25–33. http://dx.doi.org/10.52326/jes.utm.2021.28(2).01.

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Optical spectra were investigated in a spectral range of (300 - 700) nm for CuAlS2 single crystals. Transmission and wavelength modulated transmission spectra demonstrated presence of some impurity absorption bands in the region of optical transparency of crystals. Optical functions (real and imaginary components of the dielectric function, refractive index and extinction coefficient) have been calculated from the optical reflection spectra by means of the Kramers-Kronig relations. A strong anisotropy and birefringence have been revealed for CuAlS2 crystals. Two isotropic points have been found in (100) oriented platelets around 380 nm and 530 nm. The position of the isotropic point around 530 nm was found to be strongly influenced by the technological conditions of crystal growth and platelet thickness, it being situated at 535 nm for a platelet with thickness of 223 µm. An optical band-pass filter was constructed with such a platelet placed between two Gran-Thompson prism crossed polarizers.

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Ssu-Pin Ma and Shiao-Min Tseng. "High-performance side-polished fibers and applications as liquid crystal clad fiber polarizers." Journal of Lightwave Technology 15, no. 8 (1997): 1554–58. http://dx.doi.org/10.1109/50.618389.

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Pan, Su, Li Tan, and Hoi Sing Kwok. "Broadband reflective polarizers based on form birefringence for ultra-thin liquid crystal displays." Optics Express 25, no. 15 (2017): 17499. http://dx.doi.org/10.1364/oe.25.017499.

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Utsumi, Yuka, Shintaro Takeda, Ikuo Hiyama, Yasushi Tomioka, Masahiro Ishii, and Kikuo Ono. "Light Leakage Behaviors of Homogenously Aligned Liquid Crystal Layers Placed between Crossed Polarizers." Japanese Journal of Applied Physics 47, no. 4 (2008): 2144–48. http://dx.doi.org/10.1143/jjap.47.2144.

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Kang, C. S., and H. J. Kong. "Liquid crystal linear polarizers for Faraday isolator in a high-power laser system." IEEE Photonics Technology Letters 4, no. 9 (1992): 1038–40. http://dx.doi.org/10.1109/68.157141.

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Chen, S. H., J. C. Mastrangelo, and R. J. Jin. "Glassy Liquid Crystal Films as Broadband Polarizers and Reflectors via Spatially Modulated Photoracemization." Advanced Materials 11, no. 14 (1999): 1183–86. http://dx.doi.org/10.1002/(sici)1521-4095(199910)11:14<1183::aid-adma1183>3.0.co;2-1.

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Yang, Huai, Kenji Mishima, Kiyoshi Matsuyama, Ken-Ichiro Hayashi, Hirotsugu Kikuchi, and Tisato Kajiyama. "Thermally bandwidth-controllable reflective polarizers from (polymer network/liquid crystal/chiral dopant) composites." Applied Physics Letters 82, no. 15 (2003): 2407–9. http://dx.doi.org/10.1063/1.1567809.

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Lorenz, Alexander, Lin Jiao, and Dean R. Evans. "Photovoltaic light valving induced in a vertically aligned nematic liquid crystal on a x-cut Fe:LiNbO3substrate." Optical Data Processing and Storage 4, no. 1 (2018): 8–13. http://dx.doi.org/10.1515/odps-2018-0002.

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Abstract Photovoltaic fields induced in x-cut Fe-doped lithium niobate (Fe:LiNbO3)were used to achieve optically induced defect formation and light valving in a vertically aligned nematic liquid crystal. Initially, the optical axis of the LC was vertically aligned (along the surface-normal of the planar, photovoltaic substrates) throughout the whole sample. Samples were exposed with a focused continuous wave laser beam and investigated via microscopic imaging in-between crossed polarizers. The optical axis of the planar, x-cut Fe:LiNbO3 substrates was in the substrate plane and oriented parallel to one of the polarizers, which resulted in an initially dark state. Optically induced surface fields (with high in-plane components) generated within the substrates led to director reorientations and defect formation. Accordingly, the samples were locally switched into a transmissive state. The area affected by exposure was larger (300 μm) than the FWHM of the Gaussian exposure beam (14 μm). Switching from dark to bright states (light valving) could be achieved in the investigated samples much more eficiently than in previously investigated samples with z-cut Fe:LiNbO3-substrates. Realignments of the LC director were induced at lower optical power density (140 mW/cm2) than would be required to excite the intrinsically present nonlinear optical responses in a nematic LC such as the light induced Fredericks transition.

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Bloisi, F., P. Terrecuso, and L. Vicari. "Voltage Controlled Optical Bistability in a Twisted Nematic Liquid Crystal Cell Between Crossed Polarizers." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 290, no. 1 (1996): 11–19. http://dx.doi.org/10.1080/10587259608031887.

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Krakhalev, Mikhail N., Oxana O. Prishchepa, Vitaly S. Sutormin, and Victor Ya Zyryanov. "Polymer dispersed nematic liquid crystal films with conical boundary conditions for electrically controllable polarizers." Optical Materials 89 (March 2019): 1–4. http://dx.doi.org/10.1016/j.optmat.2019.01.004.

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Biga, Frederick, and Gregory P. Crawford. "P-98: Opto-mechanical Properties of Thin Film Crystal Polarizers Coated on Polymer Substrates." SID Symposium Digest of Technical Papers 36, no. 1 (2005): 670. http://dx.doi.org/10.1889/1.2036530.

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Journal articles on the topic 'Crystal polarizers'

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