Title :
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
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;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105232
