Deposition and etching characteristic of magnetite thin film for absorptive wire grid polarizer with 45 nm line and space pattern

2016 ◽  
Vol 34 (6) ◽  
pp. 06K407 ◽  
Author(s):  
Young Tae Cho ◽  
Jiyun Jeong ◽  
Ji Hoon Kim ◽  
Yun Jae Kim ◽  
Yeon Ho Jeong ◽  
...  
Keyword(s):  
Thin Film ◽  
Wire Grid ◽  
Space Pattern ◽  
Wire Grid Polarizer

scholarly journals Chromium plasmonic polarizer for high intensity light

2017 ◽  
Vol 9 (3) ◽  
pp. 76 ◽  
Author(s):  
Damian Arkadiusz Michalik ◽  
Paweł S. Jung ◽  
Bartłomiej W. Klus ◽  
Andrzej Kowalik ◽  
Anna Rojek ◽  
...  
Keyword(s):  
Thin Film ◽  
High Intensity ◽  
Fdtd Method ◽  
Visible Region ◽  
Visible Spectrum ◽  
Optical Element ◽  
Perfect Absorber ◽  
Wire Grid ◽  
Circuit Components ◽  
Wire Grid Polarizer

In this work, we investigate a thin-film polarizer for a high intensity of the electromagnetic (EM) beam based on Cr nano wire arrays. Commonly used thin-film polarizing components are very sensitive for high power of EM waves and can be easily damaged by focused beams. The solution to this problem could be the thin-film polarizer based on metallic subwavelengths structures. This type of optical element has huge resistance comparing to typical thin-film polarizers. However, designing such an optical element for proper wavelength of EM wave and transmissions is not easy task. In this paper we present numerical as well as experimental results for specially designed chromium thin-film polarizer for wavelength 532nm Full Text: PDF ReferencesW. Zhou, K. Li, C. Song, P. Hao, M. Chi, M. Yu and Y. Wu, "Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region", Opt. Express 23, 11 (2015). CrossRef W. L. Barnes, A . Dereux, and T. W. Ebbesen, "Surface plasmon subwavelength optics", Nature 424, 824-830 (2003). CrossRef C. Lee, E. Sim, D. Kim, "Blazed wire-grid polarizer for plasmon-enhanced polarization extinction: design and analysis", Opt. Express 25, 7 (2017). CrossRef A. Lehmuskero, Metallic thin film structures and polarization shaping gratings (University of Eastern Finland 2010).Y. Leroux, J. C. Lacroix, C. Fave, V. Stockhausen, N. Felidj, J. Grandm, A. Hohenau, J. R. Krenn, "Active plasmonic devices with anisotropic optical response: a step toward active polarizer", Nano Lett. 5, 9 (2009). CrossRef R. T. Perkins, D. P. Hansen, E. W. Gardner, J. M. Thorne, A. A. Robbins, Broadband wire grid polarizer for the visible spectrum, US 6122103 (2000). DirectLink D. M. Sullivan, Electromagnetic simulation using the FDTD method, New York: IEEE Press Series (2000). CrossRef J. P. Berenger, Perfectly Matched Layer (PML) for Computational Electromagnetics, Morgan & Claypool Publishers (2007). CrossRef Yu, W., and R. Mittra, "A conformal FDTD software package modeling antennas and microstrip circuit components", IEEE Antennas Propagat. Magazine 42, 28 (2000) . CrossRef L. W. Bos, D. W. Lynch, "Optical Properties of Antiferromagnetic Chromium and Dilute Cr-Mn and Cr-Re Alloys", Phys. Rev. Sect. B, 2, 4267 (1970). CrossRef

Polarized microbeam FT-IR analysis of single fibers

1996 ◽  
Vol 54 ◽  
pp. 206-207
Author(s):  
Liling Cho ◽  
David L. Wetzel
Keyword(s):  
Molecular Orientation ◽  
Transition Point ◽  
Polymer Fibers ◽  
Single Fiber ◽  
Wire Grid ◽  
Polyester Fibers ◽  
Ft Ir ◽  
Ir Analysis ◽  
The Relationship ◽  
Wire Grid Polarizer

Polarized infrared microscopy has been used for forensic purposes to differentiate among polymer fibers. Dichroism can be used to compare and discriminate between different polyester fibers, including those composed of polyethylene terephthalate that are frequently encountered during criminal casework. In the fiber manufacturering process, fibers are drawn to develop molecular orientation and crystallinity. Macromolecular chains are oriented with respect to the long axis of the fiber. It is desirable to determine the relationship between the molecular orientation and stretching properties. This is particularly useful on a single fiber basis. Polarized spectroscopic differences observed from a single fiber are proposed to reveal the extent of molecular orientation within that single fiber. In the work presented, we compared the dichroic ratio between unstretched and stretched polyester fibers, and the transition point between the two forms of the same fiber. These techniques were applied to different polyester fibers. A fiber stretching device was fabricated for use on the instrument (IRμs, Spectra-Tech) stage. Tension was applied with a micrometer screw until a “neck” was produced in the stretched fiber. Spectra were obtained from an area of 24×48 μm. A wire-grid polarizer was used between the source and the sample.

A finite element model of terahertz substrate-based wire-grid polarizer

2021 ◽  
Vol 188 ◽  
pp. 404-414
Author(s):  
Nazariy Jaworski ◽  
Nazariy Andrushchak ◽  
Mykhailo Lobur ◽  
Marek Iwaniec
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Wire Grid ◽  
Wire Grid Polarizer

Novel wire grid polarizer for accurate antenna characterization

2012 ◽  
Author(s):  
Hongkyu Park ◽  
Huang Zhe ◽  
Edward PJ Parrott ◽  
Andy Chan ◽  
Emma Pickwell-MacPherson
Keyword(s):  
Wire Grid ◽  
Wire Grid Polarizer

RETRACTED: Modeling and imprint fabrication of an infrared wire-grid polarizer with an antireflection grating structure

2014 ◽  
Vol 64 ◽  
pp. 13-17 ◽  
Author(s):  
Itsunari Yamada ◽  
Naoto Yamashita ◽  
Toshihiko Einishi ◽  
Mitsunori Saito ◽  
Kouhei Fukumi ◽  
...  
Keyword(s):  
Wire Grid ◽  
Grating Structure ◽  
Wire Grid Polarizer

Fabrication of a mid-IR wire-grid polarizer by direct imprinting on chalcogenide glass

2011 ◽  
Vol 36 (19) ◽  
pp. 3882 ◽  
Author(s):  
Itsunari Yamada ◽  
Naoto Yamashita ◽  
Kunihiko Tani ◽  
Toshihiko Einishi ◽  
Mitsunori Saito ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Wire Grid ◽  
Wire Grid Polarizer

Polarization-dependent thin-film wire-grid reflectarray for terahertz waves

2015 ◽  
Vol 107 (3) ◽  
pp. 031111 ◽  
Author(s):  
Tiaoming Niu ◽  
Aditi Upadhyay ◽  
Withawat Withayachumnankul ◽  
Daniel Headland ◽  
Derek Abbott ◽  
...  
Keyword(s):  
Thin Film ◽  
Terahertz Waves ◽  
Wire Grid
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