Flexible terahertz wire grid polarizer with high extinction ratio and low loss

Ferraro, A, Zografopulos, D C, Missori, M, Peccianti, M, Caputo, R and Beccherelli, R (2016) Flexible terahertz wire grid polarizer with high extinction ratio and low loss. Optics Letters, 41 (9). pp. 2009-2012. ISSN 0146-9592

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Abstract

An aluminum-based THz wire grid polarizer is theoretically investigated and experimentally demonstrated on a sub-wavelength thin flexible and conformal foil of the cyclo-olefin Zeonor© polymer. THz time-domain spectroscopy characterization, performed on both flat and curved configurations, reveals a high extinction ratio between 40 and 45 dB in the 0.3-1 THz range and in excess of 30 dB up to 2.5 THz. The insertion losses are lower than 1 dB and are almost exclusively due to moderate Fabry-Perót reflections, which vanish at targeted frequencies. The polarizer can be easily fabricated with low-cost techniques such as roll-to-roll and/or large area electronics processes and promises to pen the way for a new class of flexible and conformal THz devices.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Mathematics
Subjects: Q Science > QC Physics > QC0350 Optics. Light
T Technology > TA Engineering (General). Civil engineering (General) > TA1501 Applied optics. Photonics
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Depositing User: Marco Peccianti
Date Deposited: 05 Apr 2016 14:04
Last Modified: 08 May 2017 10:09
URI: http://sro.sussex.ac.uk/id/eprint/60333

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Project NameSussex Project NumberFunderFunder Ref
Route to guided TeraHertz backscattering Inspection and Analysis : THEIAG1308EUROPEAN UNIONPCIG14-GA-2013-630833