Fabrication of an infrared wire-grid polarizer via anisotropical Si etching in KOH solution

2020 ◽  
Vol 59 (18) ◽  
pp. 5570
Author(s):  
Itsunari Yamada ◽  
Rei Yoshida
Keyword(s):  
Wire Grid ◽  
Wire Grid Polarizer

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

Integrated Wire Grid Polarizer and Plasmonic Polarization Beam Splitter

2012 ◽  
Author(s):  
A. Melikyan ◽  
C. Gaertner ◽  
K. Koehnle ◽  
A. Muslija ◽  
M Sommer M Kohl ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Polarization Beam Splitter ◽  
Wire Grid ◽  
Wire Grid Polarizer
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