Normal incidence intervalence subband absorption in GaSb quantum well enhanced by coupling to InAs conduction band

J. Katz; Y. Zhang; W. I. Wang

doi:10.1063/1.108871

Normal incidence intervalence subband absorption in GaSb quantum well enhanced by coupling to InAs conduction band

J. Katz, Y. Zhang, W. I. Wang

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

We demonstrate a novel infrared (IR) detector structure based on the type II p-doped InAs/GaSb multiquantum well system. Due to the coupling of the first conduction subband in InAs to the valence band states in GaSb, the normal incidence absorption coefficient for intervalence subband transitions between heavy and light hole subbands in GaSb quantum wells is significantly enhanced. An absorption coefficient as large as 6500 cm^-1 has been achieved in the wavelength range of 8-17 μm. This is the strongest absorption ever observed among all the IR materials in this wavelength range.

Original language	English (US)
Pages (from-to)	609-611
Number of pages	3
Journal	Applied Physics Letters
Volume	62
Issue number	6
DOIs	https://doi.org/10.1063/1.108871
State	Published - 1993
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.108871

Cite this

@article{6f15ce9477a146f88ed25cec729c65bb,

title = "Normal incidence intervalence subband absorption in GaSb quantum well enhanced by coupling to InAs conduction band",

abstract = "We demonstrate a novel infrared (IR) detector structure based on the type II p-doped InAs/GaSb multiquantum well system. Due to the coupling of the first conduction subband in InAs to the valence band states in GaSb, the normal incidence absorption coefficient for intervalence subband transitions between heavy and light hole subbands in GaSb quantum wells is significantly enhanced. An absorption coefficient as large as 6500 cm-1 has been achieved in the wavelength range of 8-17 μm. This is the strongest absorption ever observed among all the IR materials in this wavelength range.",

author = "J. Katz and Y. Zhang and Wang, {W. I.}",

year = "1993",

doi = "10.1063/1.108871",

language = "English (US)",

volume = "62",

pages = "609--611",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "6",

}

TY - JOUR

T1 - Normal incidence intervalence subband absorption in GaSb quantum well enhanced by coupling to InAs conduction band

AU - Katz, J.

AU - Zhang, Y.

AU - Wang, W. I.

PY - 1993

Y1 - 1993

N2 - We demonstrate a novel infrared (IR) detector structure based on the type II p-doped InAs/GaSb multiquantum well system. Due to the coupling of the first conduction subband in InAs to the valence band states in GaSb, the normal incidence absorption coefficient for intervalence subband transitions between heavy and light hole subbands in GaSb quantum wells is significantly enhanced. An absorption coefficient as large as 6500 cm-1 has been achieved in the wavelength range of 8-17 μm. This is the strongest absorption ever observed among all the IR materials in this wavelength range.

AB - We demonstrate a novel infrared (IR) detector structure based on the type II p-doped InAs/GaSb multiquantum well system. Due to the coupling of the first conduction subband in InAs to the valence band states in GaSb, the normal incidence absorption coefficient for intervalence subband transitions between heavy and light hole subbands in GaSb quantum wells is significantly enhanced. An absorption coefficient as large as 6500 cm-1 has been achieved in the wavelength range of 8-17 μm. This is the strongest absorption ever observed among all the IR materials in this wavelength range.

UR - http://www.scopus.com/inward/record.url?scp=0001745238&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001745238&partnerID=8YFLogxK

U2 - 10.1063/1.108871

DO - 10.1063/1.108871

M3 - Article

SN - 0003-6951

VL - 62

SP - 609

EP - 611

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

ER -

Normal incidence intervalence subband absorption in GaSb quantum well enhanced by coupling to InAs conduction band

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this