Extraction of infrared optical constants from fringing reflectance spectra
| Autor: | Shun-Tung Yen, Pei-Kang Chung |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Infrared
Chemistry Analytical chemistry Physics::Optics General Physics and Astronomy Infrared spectroscopy Dielectric Molar absorptivity Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Spectral line Condensed Matter::Materials Science symbols.namesake Transmittance symbols Raman spectroscopy Absorption (electromagnetic radiation) |
| Zdroj: | Journal of Applied Physics. 116:153101 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.4898037 |
| Popis: | We propose a simple and reliable method for extracting the optical constants of homogeneous dielectrics which can be pure or impure, and polar or nonpolar. The extraction is made from fringing reflectance spectra of slab samples with and without metal on the backside. The method is demonstrated to work well for polar semiconductors GaAs and InP in the infrared regime. The extracted extinction coefficient spectra exhibit plenty of features which correspond well to those in absorption and Raman spectra. |
| Databáze: | OpenAIRE |
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