Problem of ambiguity in the determination of optical constants of thin absorbing films from spectroscopic reflectance and transmittance measurements

被引：17

作者：

Lamprecht, K ^{[1
]}

Papousek, W ^{[1
]}

Leising, G ^{[1
]}

机构：

[1] GRAZ UNIV TECHNOL,INST SOLID STATE PHYS,A-8010 GRAZ,AUSTRIA

来源：

APPLIED OPTICS | 1997年 / 36卷 / 25期

关键词：

D O I：

10.1364/AO.36.006364

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a new and simple procedure to overcome the ambiguity in the determination of optical constants of thin absorbing films from spectroscopic reflectance and transmittance measurements. The basis for the proposed method is an error analysis with the help of an error simulation technique and an error variation technique. We show that in practice (owing to experimental errors) it is not possible to overcome the problem of ambiguity by normal-incidence spectroscopic measurements alone. At least one oblique-incidence measurement is necessary for unambiguously determining the optical constants of the film. me discuss the consequences of experimental errors of the measured transmittance and reflectance values for the determination of the optical. constants. (C) 1997 Optical Society of America.

引用

页码：6364 / 6371

页数：8

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