Modeling AlxGa1-xAs optical constants as functions of composition

Paul G. Snyder; John A. Woollam; Samuel A. Alterovitz; Blaine Johs

doi:10.1063/1.346921

Modeling Al_xGa_1-xAs optical constants as functions of composition

Paul G. Snyder, John A. Woollam, Samuel A. Alterovitz, Blaine Johs

Electrical & Computer Engineering

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

27 Scopus citations

Abstract

Three models for the dielectric function ε_x(hν) of Al_xGa_1-xAs are reviewed. All are based on measured optical constants at discrete compositions. The validity of each model near critical point energies, and otherwise, is evaluated. Only the energy-shift model is appropriate over the entire available spectrum (1.5-6.0 eV), including the band-gap (E₀) region.

Original language	English (US)
Pages (from-to)	5925-5926
Number of pages	2
Journal	Journal of Applied Physics
Volume	68
Issue number	11
DOIs	https://doi.org/10.1063/1.346921
State	Published - 1990

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.346921

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title = "Modeling AlxGa1-xAs optical constants as functions of composition",

abstract = "Three models for the dielectric function εx(hν) of AlxGa1-xAs are reviewed. All are based on measured optical constants at discrete compositions. The validity of each model near critical point energies, and otherwise, is evaluated. Only the energy-shift model is appropriate over the entire available spectrum (1.5-6.0 eV), including the band-gap (E0) region.",

author = "Snyder, {Paul G.} and Woollam, {John A.} and Alterovitz, {Samuel A.} and Blaine Johs",

year = "1990",

doi = "10.1063/1.346921",

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AU - Snyder, Paul G.

AU - Woollam, John A.

AU - Alterovitz, Samuel A.

AU - Johs, Blaine

PY - 1990

Y1 - 1990

N2 - Three models for the dielectric function εx(hν) of AlxGa1-xAs are reviewed. All are based on measured optical constants at discrete compositions. The validity of each model near critical point energies, and otherwise, is evaluated. Only the energy-shift model is appropriate over the entire available spectrum (1.5-6.0 eV), including the band-gap (E0) region.

AB - Three models for the dielectric function εx(hν) of AlxGa1-xAs are reviewed. All are based on measured optical constants at discrete compositions. The validity of each model near critical point energies, and otherwise, is evaluated. Only the energy-shift model is appropriate over the entire available spectrum (1.5-6.0 eV), including the band-gap (E0) region.

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Modeling Al_xGa_1-xAs optical constants as functions of composition

Abstract

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