Observation of electronic states confined in surface quantum wells and above quantum barriers with modulated reflectivity

C. Parks; A. K. Ramdas; M. R. Melloch; G. Steblovsky; L. R. Ram-Mohan; H. Luo

doi:10.1016/0038-1098(94)00625-3

Observation of electronic states confined in surface quantum wells and above quantum barriers with modulated reflectivity

C. Parks
, A. K. Ramdas
, M. R. Melloch
, G. Steblovsky
, L. R. Ram-Mohan
, H. Luo

Physics

Purdue University
Worcester Polytechnic Institute

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

11 Scopus citations

Abstract

The modulated reflectivity spectra of a surface quantum well, composed of vacuum- /GaAs/Al_xGa_1-xAs, exhibit in a striking manner optical transitions associated with electronic states confined within the quantum well. The spectra reveal numerous distinct signatures of the transitions between quantum confined states in the GaAs surface layer, their energies demonstrably controlled by its width. Equally remarkable signatures appear, which can be traced to localized electronic levels above the Al_xGa_1-xAs single quantum barrier formed by this structure.

Original language	English
Pages (from-to)	563-567
Number of pages	5
Journal	Solid State Communications
Volume	92
Issue number	7
DOIs	https://doi.org/10.1016/0038-1098(94)00625-3
State	Published - Nov 1994

Keywords

A. semiconductors
D. quantum localization E. light absorption and reflection

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10.1016/0038-1098(94)00625-3

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title = "Observation of electronic states confined in surface quantum wells and above quantum barriers with modulated reflectivity",

abstract = "The modulated reflectivity spectra of a surface quantum well, composed of vacuum- /GaAs/AlxGa1-xAs, exhibit in a striking manner optical transitions associated with electronic states confined within the quantum well. The spectra reveal numerous distinct signatures of the transitions between quantum confined states in the GaAs surface layer, their energies demonstrably controlled by its width. Equally remarkable signatures appear, which can be traced to localized electronic levels above the AlxGa1-xAs single quantum barrier formed by this structure.",

keywords = "A. semiconductors, D. quantum localization E. light absorption and reflection",

author = "C. Parks and Ramdas, \{A. K.\} and Melloch, \{M. R.\} and G. Steblovsky and Ram-Mohan, \{L. R.\} and H. Luo",

year = "1994",

month = nov,

doi = "10.1016/0038-1098(94)00625-3",

language = "English",

volume = "92",

pages = "563--567",

journal = "Solid State Communications",

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T1 - Observation of electronic states confined in surface quantum wells and above quantum barriers with modulated reflectivity

AU - Parks, C.

AU - Ramdas, A. K.

AU - Melloch, M. R.

AU - Steblovsky, G.

AU - Ram-Mohan, L. R.

AU - Luo, H.

PY - 1994/11

Y1 - 1994/11

N2 - The modulated reflectivity spectra of a surface quantum well, composed of vacuum- /GaAs/AlxGa1-xAs, exhibit in a striking manner optical transitions associated with electronic states confined within the quantum well. The spectra reveal numerous distinct signatures of the transitions between quantum confined states in the GaAs surface layer, their energies demonstrably controlled by its width. Equally remarkable signatures appear, which can be traced to localized electronic levels above the AlxGa1-xAs single quantum barrier formed by this structure.

AB - The modulated reflectivity spectra of a surface quantum well, composed of vacuum- /GaAs/AlxGa1-xAs, exhibit in a striking manner optical transitions associated with electronic states confined within the quantum well. The spectra reveal numerous distinct signatures of the transitions between quantum confined states in the GaAs surface layer, their energies demonstrably controlled by its width. Equally remarkable signatures appear, which can be traced to localized electronic levels above the AlxGa1-xAs single quantum barrier formed by this structure.

KW - A. semiconductors

KW - D. quantum localization E. light absorption and reflection

UR - https://www.scopus.com/pages/publications/0028540828

U2 - 10.1016/0038-1098(94)00625-3

DO - 10.1016/0038-1098(94)00625-3

M3 - Article

AN - SCOPUS:0028540828

SN - 0038-1098

VL - 92

SP - 563

EP - 567

JO - Solid State Communications

JF - Solid State Communications

IS - 7

ER -

Observation of electronic states confined in surface quantum wells and above quantum barriers with modulated reflectivity

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Keywords

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