Metal-film subwavelength-grating polarizer with low insertion losses and high extinction ratios in the terahertz region | Zendy

Kazuo Shiraishi | Zendy; Kengo Muraki | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Metal-film subwavelength-grating polarizer with low insertion losses and high extinction ratios in the terahertz region

Author(s) -

Kazuo Shiraishi,

Kengo Muraki

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.016676

Subject(s) - polarizer , extinction ratio , materials science , terahertz radiation , optics , grating , optoelectronics , fabrication , wavelength , birefringence , physics , medicine , alternative medicine , pathology

A metal-film subwavelength-grating polarizer with high performance in the terahertz region is presented. The polarizer was obtained by depositing a thin Au film on a resin grating with a triangular cross section duplicated from a metal mold by using the imprinting method. Microstructural parameters were investigated in detail. Measured insertion losses were less than 0.5 dB in the frequency range of 0.5-3 THz, while extinction ratios were 50 dB in the range of 0.5-2.3 THz. The proposed fabrication method is suited to mass production of large-aperture robust polarizers.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research