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Photoreflectance Interference in Dielectric Single Heterojunctions
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- Authors
- Kyu Seok Lee
- Issue Date
- 2006-11
- Citation
- Journal of the Korean Physical Society, v.49, no.5, pp.2045-2048
- ISSN
- 0374-4884
- Publisher
- 한국물리학회 (KPS)
- Language
- English
- Type
- Journal Article
- Abstract
- We develop an analytic formalism that explains the interference of photore°ectance in dielectric single heterojunctions (DSHs) in the spectral region of the bandgap energy where the refractive indices of the epilayer and the substrate are modulated by the modulation pump beam. As an application, a photore°ectance interference feature of a GaAs epilayer grown on an n-type GaAs substrate is analyzed to determine the epilayer thickness.
- KSP Keywords
- Band-gap energy, GaAs substrates, N-type, refractive index