Terahertz Direct Detection in YBa2Cu3O7 Microbolometers
Journal article, 2011

A high sensitivity broadband terahertz direct detector based on YBa2Cu3O7 high-Tc superconductor microbolometers is presented. At 77 K, the responsivity of the spiral antenna-integrated microbolometers (1.5 um x 1.5 um) is 190 V/W, referenced to the input of the silicon substrate lens, across the frequency range of 330 GHz–1.63 THz in a single device. The response time is approximately 300 ps. Using a room temperature readout, we measure an optical noise equivalent power (NEP) of 20 pW/Hz^0.5 (readout noise limited) for modulation frequencies ranging from 500 Hz to 100 kHz.

spiral antenna

microbolometers

YBa2Cu3O7 (YBCO)

superconductor

Terahertz (THz) detectors

Author

Arvid Hammar

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Serguei Cherednichenko

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Stella Bevilacqua

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Vladimir Drakinskiy

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Jan Stake

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

IEEE Transactions on Terahertz Science and Technology

2156-342X (ISSN)

Vol. 1 2 390 - 394 5982118

Areas of Advance

Information and Communication Technology

Nanoscience and Nanotechnology (2010-2017)

Infrastructure

Nanofabrication Laboratory

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TTHZ.2011.2161050

More information

Created

10/7/2017