Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Terahertz wire-grid polarizers with micrometer-pitch Al gratings

Not Accessible

Your library or personal account may give you access

Abstract

We fabricated a terahertz wire-grid polarizer consisting of a micrometer-pitch Al grating on a Si substrate by photolithography and wet etching. The ratio of TM and TE transmittances (extinction ratio) was over 35dB at 0.5THz. At the Brewster angle of the Si substrate, the polarization transmittance of a TM wave through the fabricated polarizer exceeded 95% and the extinction ratio was over 45dB at 1THz. The fabricated polarizer has a higher extinction ratio than conventional free-standing terahertz wire-grid polarizers.

© 2009 Optical Society of America

Full Article  |  PDF Article
More Like This
Transmittance enhancement of a wire-grid polarizer by antireflection coating

Itsunari Yamada, Kenji Kintaka, Junji Nishii, Satoshi Akioka, Yutaka Yamagishi, and Mitsunori Saito
Appl. Opt. 48(2) 316-320 (2009)

High extinction ratio and low transmission loss thin-film terahertz polarizer with a tunable bilayer metal wire-grid structure

Zhe Huang, Edward P. J. Parrott, Hongkyu Park, Hau Ping Chan, and Emma Pickwell-MacPherson
Opt. Lett. 39(4) 793-796 (2014)

Terahertz wire grid polarizer fabricated by imprinting porous silicon

Kenji Imakita, Takeshi Kamada, Minoru Fujii, Kanna Aoki, Minoru Mizuhata, and Shinji Hayashi
Opt. Lett. 38(23) 5067-5070 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved