35 mu m cutoff bound-to-quasibound and bound-to-continuum InGaAs QWIPs

Citation
Agu. Perera et al., 35 mu m cutoff bound-to-quasibound and bound-to-continuum InGaAs QWIPs, INFR PHYS T, 42(3-5), 2001, pp. 157-162
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
INFRARED PHYSICS & TECHNOLOGY
ISSN journal
13504495 → ACNP
Volume
42
Issue
3-5
Year of publication
2001
Pages
157 - 162
Database
ISI
SICI code
1350-4495(200106/10)42:3-5<157:3MMCBA>2.0.ZU;2-5
Abstract
GaAs/InGaAs far-infrared quantum well photodetectors based on a bound-to-co ntinuum (bc) and bound-to-quasibound (bq) intersubband transition with a cu toff wavelength (zero response) up to 35 mum are reported. A peak responsiv ity of 0.45 and 0.30 A/W and detectivity of 6 x 10(9) and 1.0 x 10(10) cm r oot Hz/W at a wavelength of 31 mum and a temperature of 4.2 K respectively for a be and a bq detector have been achieved. (C) 2001 Elsevier Science B. V. All rights reserved.