Terahertz quantum well infrared detectors

被引：17

作者：

Graf, Marcel ^{[1
,2
]}

Dupont, Emmanuel ^{[1
]}

Luo, Hui ^{[1
]}

Haffouz, Soufien ^{[1
]}

Wasilewski, Zbig R. ^{[1
]}

Thorpe, Anthony J. Spring ^{[1
]}

Ban, Dayan ^{[2
]}

Liu, H. C. ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

[2] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada

来源：

INFRARED PHYSICS & TECHNOLOGY | 2009年 / 52卷 / 06期

关键词：

QWIP; Photodetector; Tterahertz; Quantum wells; GaAs; Collective effects; PHOTODETECTOR; TECHNOLOGY; ABSORPTION; EXCHANGE;

D O I：

10.1016/j.infrared.2009.05.034

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on recent measurements on GaAs/AlGaAs THz quantum well infrared photodetectors (QWIPS), investigating linewidth broadening as function of doping level. Structures with 3% and 2% Al content in the barrier were grown using molecular beam epitaxy (MBE) and metal-organic chemical vapor deposition (MOCVD), respectively. Linewidth widening with increasing doping of the GaAs quantum well could be observed in the detection spectra. The observed shift of peak detection wavelength for different well dopings fits with values obtained from wavefunction calculations, taking into account many-particle effects, namely exchange and correlation energies and the effect of depolarization on the absorption. In addition, activation energies extracted from dark current measurements as function of device temperature are also in agreement with the calculations. (C) 2009 Published by Elsevier B.V.

引用

页码：289 / 293

页数：5

共 50 条

[1] Quantum well infrared detectors - Reply
Levine, BF
[J]. JOURNAL OF APPLIED PHYSICS, 1997, 82 (10) : 5271 - 5271
[2] Overview of quantum well infrared detectors
Manasreh, MO
Missous, M
[J]. PROCEEDINGS OF THE SYMPOSIUM ON LIGHT EMITTING DEVICES FOR OPTOELECTRONIC APPLICATIONS AND THE TWENTY-EIGHTH STATE-OF-THE-ART PROGRAM ON COMPOUND SEMICONDUCTORS, 1998, 98 (02): : 1 - 9
[3] Quantum well infrared photoconductors in infrared detectors technology
Rogalski, A
[J]. 17TH INTERNATIONAL CONFERENCE ON PHOTOELECTRONICS AND NIGHT VISION DEVICES, 2003, 5126 : 141 - 152
[4] Terahertz range quantum well infrared photodetector
Graf, M
Scalari, G
Hofstetter, D
Faist, J
Beere, H
Linfield, E
Ritchie, D
Davies, G
[J]. APPLIED PHYSICS LETTERS, 2004, 84 (04) : 475 - 477
[5] Many-body effects on terahertz quantum well detectors
Guo, X. G.
Tan, Z. Y.
Cao, J. C.
Liu, H. C.
[J]. APPLIED PHYSICS LETTERS, 2009, 94 (20)
[6] Recent Progress in Terahertz Quantum Cascade Lasers and Quantum Well Detectors (Invited)
Cao, Juncheng
Han, Yingjun
[J]. CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG, 2024, 51 (01):
[7] Predictions of the responsivity of terahertz quantum well infrared photodetectors
Gadir, MA
Harrison, P
Soref, RA
[J]. QUANTUM SENSING: EVOLUTION AND REVOLUTION FROM PAST TO FUTURE, 2003, 4999 : 200 - 209
[8] PbSe/CdTe single quantum well infrared detectors
Chusnutdinow, S.
Szot, M.
Wojtowicz, T.
Karczewski, G.
[J]. AIP ADVANCES, 2017, 7 (03)
[9] Optically-coupled quantum well infrared detectors
Wu, WG
Cui, LQ
Jiang, DS
Liu, W
Song, CY
[J]. DETECTORS, FOCAL PLANE ARRAYS, AND APPLICATIONS, 1996, 2894 : 48 - 48
[10] Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths
Gadir, MA
Harrison, P
Soref, RA
[J]. JOURNAL OF APPLIED PHYSICS, 2002, 91 (09) : 5820 - 5825

← 1 2 3 4 5 →