A novel terahertz power meter using metamaterial-inspired thin-film absorber

Author

Park, Kyoung Youl ; Wiwatcharagoses, Nophadon ; Baczewski, Andrew ; Chahal, Premjeet

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

fYear

2011

fDate

2-7 Oct. 2011

Firstpage

1

Lastpage

2

Abstract

A novel power meter operating from 0.1 to 0.2 THz is presented. The power meter has utilized a thin-film metamaterial inspired absorbing layer. This absorber has the desired characteristics such as ultra-wide bandwidth and strong absorption. In a bolometer-like measurement setup, it functions as a wideband high-responsivity THz detector. The absorbing layer consists of a low loss thin dielectric membrane onto which a two-dimensionally periodic, thin metallic layers is patterned. The measured absorption coefficient is above 0.75 at 220GHz range.

Keywords

bolometers; millimetre wave detectors; power meters; terahertz wave detectors; thin film sensors; bolometer-like measurement setup; frequency 0.1 THz to 0.2 THz; low loss thin dielectric membrane; metamaterial-inspired thin-film absorber; terahertz power meter; thin metallic layers; wideband high-responsivity THz detector; Absorption; Bolometers; Electrical resistance measurement; Frequency measurement; Optical waveguides; Resistance; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Conference_Location

Houston, TX

ISSN

2162-2027

Print_ISBN

978-1-4577-0510-6

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/irmmw-THz.2011.6105232

Filename

6105232