An alternative of spectroscopic ellipsometry: The double-reference method

I. Ḱzsmárki, S. Bordács

Research output: Contribution to journalArticle

Abstract

We have developed a method conceptually different from ellipsometric techniques which allows the determination of the complex refractive index by simultaneously measuring the unpolarized normal-incidence reflectivity relative to the vacuum and another reference media such as diamond, GaAs, CdTe, etc. From these two quantities, the complex optical response can be directly obtained without Kramers-Kronig transformation. Due to its transparency and large refractive index from the far-infrared to the soft ultraviolet regions, diamond can be ideally used as a second reference over the whole optical spectrum. The experimental arrangement is rather simple compared to ellipsometry.

Original languageEnglish
Article number131104
JournalApplied Physics Letters
Volume92
Issue number13
DOIs
Publication statusPublished - Apr 10 2008

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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