Nondestructive photoacoustic detection of exciton resonances in GaAs/AlGaAs multiple quantum well structures

J. H. Chu; Y. H. Bak; J. H. Kim; H. L. Park; S. H. Park; U. Kim; J. G. Choi; I. G. Kim

doi:10.1063/1.111053

Nondestructive photoacoustic detection of exciton resonances in GaAs/AlGaAs multiple quantum well structures

J. H. Chu, Y. H. Bak, J. H. Kim, H. L. Park, S. H. Park, U. Kim, J. G. Choi, I. G. Kim

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

4 Citations (Scopus)

Abstract

We report nondestructive observations of both heavy-hole and light-hole excitons in the GaAs/AlGaAs multiple quantum wells (MQWs) using photoacoustic spectroscopy. The absorption spectra were measured by the gas-microphone photoacoustic technique with a minimal volume cell and grazing incidence method. Two distinct peaks were clearly observed in the photoacoustic signal and phase spectra of the MQW at room temperature. A photoreflectance measurement for the given MQW structure revealed that two peaks originated from the heavy-hole and light-hole excitonic resonances.

Original language	English
Pages (from-to)	745-747
Number of pages	3
Journal	Applied Physics Letters
Volume	64
Issue number	6
DOIs	https://doi.org/10.1063/1.111053
Publication status	Published - 1994

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.111053

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@article{ccc04a4a7eb94ef6ac5c59eeaddde431,

title = "Nondestructive photoacoustic detection of exciton resonances in GaAs/AlGaAs multiple quantum well structures",

abstract = "We report nondestructive observations of both heavy-hole and light-hole excitons in the GaAs/AlGaAs multiple quantum wells (MQWs) using photoacoustic spectroscopy. The absorption spectra were measured by the gas-microphone photoacoustic technique with a minimal volume cell and grazing incidence method. Two distinct peaks were clearly observed in the photoacoustic signal and phase spectra of the MQW at room temperature. A photoreflectance measurement for the given MQW structure revealed that two peaks originated from the heavy-hole and light-hole excitonic resonances.",

author = "Chu, {J. H.} and Bak, {Y. H.} and Kim, {J. H.} and Park, {H. L.} and Park, {S. H.} and U. Kim and Choi, {J. G.} and Kim, {I. G.}",

year = "1994",

doi = "10.1063/1.111053",

language = "English",

volume = "64",

pages = "745--747",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

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T1 - Nondestructive photoacoustic detection of exciton resonances in GaAs/AlGaAs multiple quantum well structures

AU - Chu, J. H.

AU - Bak, Y. H.

AU - Kim, J. H.

AU - Park, H. L.

AU - Park, S. H.

AU - Kim, U.

AU - Choi, J. G.

AU - Kim, I. G.

PY - 1994

Y1 - 1994

N2 - We report nondestructive observations of both heavy-hole and light-hole excitons in the GaAs/AlGaAs multiple quantum wells (MQWs) using photoacoustic spectroscopy. The absorption spectra were measured by the gas-microphone photoacoustic technique with a minimal volume cell and grazing incidence method. Two distinct peaks were clearly observed in the photoacoustic signal and phase spectra of the MQW at room temperature. A photoreflectance measurement for the given MQW structure revealed that two peaks originated from the heavy-hole and light-hole excitonic resonances.

AB - We report nondestructive observations of both heavy-hole and light-hole excitons in the GaAs/AlGaAs multiple quantum wells (MQWs) using photoacoustic spectroscopy. The absorption spectra were measured by the gas-microphone photoacoustic technique with a minimal volume cell and grazing incidence method. Two distinct peaks were clearly observed in the photoacoustic signal and phase spectra of the MQW at room temperature. A photoreflectance measurement for the given MQW structure revealed that two peaks originated from the heavy-hole and light-hole excitonic resonances.

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U2 - 10.1063/1.111053

DO - 10.1063/1.111053

M3 - Article

AN - SCOPUS:0028767106

SN - 0003-6951

VL - 64

SP - 745

EP - 747

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

ER -

Nondestructive photoacoustic detection of exciton resonances in GaAs/AlGaAs multiple quantum well structures

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