THz Transparent Metamaterials for Enhanced Spectroscopic and Imaging Measurements

Author

Sanphuang, Varittha ; Woon-Gi Yeo ; Volakis, J.L. ; Nahar, Niru K.

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA

Volume

5

Issue

1

fYear

2015

fDate

Jan. 2015

Firstpage

117

Lastpage

123

Abstract

We present a frequency-selective surfaces (FSS) transparent window exhibiting low losses for broadband spectroscopic and imaging measurements in terahertz (THz) frequencies. The intent is to replace existing samples holders (e.g., Z-cut crystal quartz) with transparent metamaterial windows and increase measurement sensitivity. To enable multiband and broadband responses, two designs of single-layer FSS with superstrate are demonstrated: circular slot and double square loop, and thus suppress losses in a given range of THz band.

Keywords

frequency selective surfaces; terahertz metamaterials; terahertz spectroscopy; terahertz wave imaging; FSS transparent window; Z-cut crystal quartz; broadband spectroscopic measurements; enhanced imaging measurements; enhanced spectroscopic measurements; frequency-selective surfaces; single-layer FSS designs; superstrate; terahertz transparent metamaterial windows; Bandwidth; Frequency selective surfaces; Imaging; Loss measurement; Metamaterials; Refractive index; Substrates; Metamaterials; THz imaging; periodic structures; terahertz (THz) spectroscopy;

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2014.2362659

Filename

6939743