High sensitivity terahertz bolometers as room temperature detectors

Author

Bevilacqua, Stella ; Cherednichenko, Sergey

Author_Institution

Dept. of Microtechnol. & Nanosci. (MC2), Chalmers Univ. of Technol., Göteborg, Sweden

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

High sensitivity room temperature THz direct detectors made of YBa₂Cu₃O_7-x nano-bridges, with a broadband optical coupling (0.1-2THz) are presented. An optical responsivity (Rv) up to 45 V/W was measured at 400 GHz. For bolometers with an electrical responsivity of 70 V/W a noise equivalent power (NEP) of 50 pW/Hz^0.5 was experimental obtained.

Keywords

barium compounds; bolometers; nanosensors; nanostructured materials; optical sensors; optical variables measurement; submillimetre wave detectors; temperature measurement; temperature sensors; terahertz wave detectors; yttrium compounds; NEP; YBa₂Cu₃O_7-x; broadband optical coupling; electrical responsivity; frequency 0.1 THz to 2 THz; frequency 400 GHz; high sensitivity room temperature THz direct detector; high sensitivity terahertz bolometer; nanobridge; noise equivalent power; optical responsivity measurement; temperature 293 K to 298 K; Bolometers; Current measurement; Detectors; Noise; Optical variables measurement; Temperature sensors; Yttrium barium copper oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956197

Filename

6956197