Determination of cutoff wavenumber and composition for HgCdTe using the peak of the reflectance spectrum in the intrinsic region

L. I. Xiang-Yang; H. U. Xiao-Ning; Zhu Wen-Juan; L. U. Hui-Qing Zhao; Jun Gong Hai-Mei; Fang Jia-Xiong

Determination of cutoff wavenumber and composition for HgCdTe using the peak of the reflectance spectrum in the intrinsic region

L. I. Xiang-Yang
, H. U. Xiao-Ning
, Zhu Wen-Juan
, L. U. Hui-Qing Zhao
, Jun Gong Hai-Mei
, Fang Jia-Xiong

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

Abstract

Transmittance and reflectance spectra measurements were carried out for a series of HgCdTe samples by FTIR spectrometer. Transmittance curve was used to determine the composition of each sample. An obvious peak was observed in the reflectance spectrum. By considering the dispersion of the absorption coefficient of direct band gap samples and K-K relation, theoretical analysis show this peak appears in the region of E_g < ω_m<2E_g. Through comparison of the wavenumber of the peak in the reflectance spectrum with the cut-off wavenumber, the direct proportion relationship of them was obtained and the proportion coefficient is 1. 092.

Original language	English (US)
Pages (from-to)	201-202
Number of pages	2
Journal	Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Volume	17
Issue number	3
State	Published - 1998
Externally published	Yes

Keywords

Composition
Cut-off wavenumber
HgCdTe
Peak in reflectance spectrum

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Determination of cutoff wavenumber and composition for HgCdTe using the peak of the reflectance spectrum in the intrinsic region",

abstract = "Transmittance and reflectance spectra measurements were carried out for a series of HgCdTe samples by FTIR spectrometer. Transmittance curve was used to determine the composition of each sample. An obvious peak was observed in the reflectance spectrum. By considering the dispersion of the absorption coefficient of direct band gap samples and K-K relation, theoretical analysis show this peak appears in the region of Eg < ωm<2Eg. Through comparison of the wavenumber of the peak in the reflectance spectrum with the cut-off wavenumber, the direct proportion relationship of them was obtained and the proportion coefficient is 1. 092.",

keywords = "Composition, Cut-off wavenumber, HgCdTe, Peak in reflectance spectrum",

author = "Xiang-Yang, \{L. I.\} and Xiao-Ning, \{H. U.\} and Zhu Wen-Juan and \{Hui-Qing Zhao\}, \{L. U.\} and Hai-Mei, \{Jun Gong\} and Fang Jia-Xiong",

year = "1998",

language = "English (US)",

volume = "17",

pages = "201--202",

journal = "Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves",

issn = "1001-9014",

publisher = "Chinese Optical Society",

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TY - JOUR

T1 - Determination of cutoff wavenumber and composition for HgCdTe using the peak of the reflectance spectrum in the intrinsic region

AU - Xiang-Yang, L. I.

AU - Xiao-Ning, H. U.

AU - Wen-Juan, Zhu

AU - Hui-Qing Zhao, L. U.

AU - Hai-Mei, Jun Gong

AU - Jia-Xiong, Fang

PY - 1998

Y1 - 1998

N2 - Transmittance and reflectance spectra measurements were carried out for a series of HgCdTe samples by FTIR spectrometer. Transmittance curve was used to determine the composition of each sample. An obvious peak was observed in the reflectance spectrum. By considering the dispersion of the absorption coefficient of direct band gap samples and K-K relation, theoretical analysis show this peak appears in the region of Eg < ωm<2Eg. Through comparison of the wavenumber of the peak in the reflectance spectrum with the cut-off wavenumber, the direct proportion relationship of them was obtained and the proportion coefficient is 1. 092.

AB - Transmittance and reflectance spectra measurements were carried out for a series of HgCdTe samples by FTIR spectrometer. Transmittance curve was used to determine the composition of each sample. An obvious peak was observed in the reflectance spectrum. By considering the dispersion of the absorption coefficient of direct band gap samples and K-K relation, theoretical analysis show this peak appears in the region of Eg < ωm<2Eg. Through comparison of the wavenumber of the peak in the reflectance spectrum with the cut-off wavenumber, the direct proportion relationship of them was obtained and the proportion coefficient is 1. 092.

KW - Composition

KW - Cut-off wavenumber

KW - HgCdTe

KW - Peak in reflectance spectrum

UR - https://www.scopus.com/pages/publications/33746726601

UR - https://www.scopus.com/pages/publications/33746726601#tab=citedBy

M3 - Article

AN - SCOPUS:33746726601

SN - 1001-9014

VL - 17

SP - 201

EP - 202

JO - Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves

JF - Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves

IS - 3

ER -

Determination of cutoff wavenumber and composition for HgCdTe using the peak of the reflectance spectrum in the intrinsic region

Abstract

Keywords

ASJC Scopus subject areas

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