Novel method of modulation spectroscopy for heterostructures: Electro-photoreflectance

被引：0

作者：

Yamaguchi, Masahito ^{[1
]}

Kubo, Hitoshi ^{[1
]}

Taniguchi, Kenji ^{[1
]}

Hamaguchi, Chihiro ^{[1
]}

Fujii, Toshio ^{[1
]}

机构：

[1] Osaka Univ, Suita City, Japan

来源：

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1993年 / 32卷 / 3 A期

关键词：

Band structure - Electric fields - Electron reflection - Electron transitions - Light reflection - Modulation - Spectroscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A new modulation spectroscopy for studying the optical transition energies of layered electronic materials is presented. The method is based on a superposition of the modulation field produced by illumination of a laser and the field produced by external voltage to maintain a constant surface field unchanged, giving rise to reflectance signals due to the buried layer. A comparison of the present method with conventional electroreflectance and photoreflectance methods reveals that the present method (called electro-photoreflectance) picks out the reflectance signals from the buried layers but not those from the front surface.

引用

页码：1259 / 1261

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