A terahertz polarizer consisting of a laminated metal-slit array on a polymer film is presented. Here, the iterative design is efficiently performed with a mode-matching method; the proposed polarizer's characteristics are shown to be superior to those of conventional polarizers. To verify the proposed design, a copper metal-slit array was fabricated on a cyclo-olefin polymer film by sputtering and punching. Measurements confi rm a high extinction ratio, below -50 dB from 0.28 to 1.09 THz and below -40 dB from 0.2 to 1.98 THz, with a TM-mode transmission power that averages 76% from 0.2 to 1.95THz.
|Journal||Applied Physics Express|
|State||Published - Mar 1 2015|
Bibliographical notePublisher Copyright:
© 2015 The Japan Society of Applied Physics.
ASJC Scopus subject areas
- Engineering (all)
- Physics and Astronomy (all)