Author(s): Li, K (Li, Kun); Liu, SM (Liu, Shu-Man); Zhuo, N (Zhuo, Ning); Liu, JQ (Liu, Jun-Qi); Zhu, YX (Zhu, Yi-Xuan); Guo, K (Guo, Kai); Zhai, SQ (Zhai, Shen-Qiang); Zhang, JC (Zhang, Jin-Chuan); Wang, LJ (Wang, Li-Jun); Li, Y (Li, Yuan); Liu, FQ (Liu, Feng-Qi)

Source: APPLIED PHYSICS EXPRESS Volume: 15 Issue: 3 Article Number: 032005 DOI: 10.35848/1882-0786/ac5500 Published: MAR 1 2022

Abstract: We demonstrate a quantum cascade detector with two coupled double-well structures exhibiting a high peak responsivity of 166 mA W-1 for 8.2 mu m detection at 80 K. The coupled double-absorption-well design offers enhanced absorption efficiency. Meanwhile, incorporating another coupled double-well structure in the extractor increases the extraction efficiency. Both factors contribute to the high performance of our device.

Accession Number: WOS:000760517000001

ISSN: 1882-0778

eISSN: 1882-0786

Full Text: https://iopscience.iop.org/article/10.35848/1882-0786/ac5500