Complex refractive-index measurement based on Fresnel’s equations and the uses of heterodyne interferometry

Ming Horng Chiu, Ju Yi Lee, Der Chin Su

Research output: Contribution to journalArticlepeer-review

91 Scopus citations

Abstract

The phase difference between s and p polarization of the light reflected from a material is used for measuring the material’s complex refractive index. First, two phase differences that correspond to two different incidence angles are measured by heterodyne interferometry. Then these two phase differences are substituted into Fresnel’s equations, and a set of simultaneous equations is obtained. Finally, the equations are solved by use of a personal computer by a numerical analysis technique, and the complex refractive index of the material can be estimated.

Original languageEnglish
Pages (from-to)4047-4052
Number of pages6
JournalApplied Optics
Volume38
Issue number19
DOIs
StatePublished - 1 Jul 1999

Fingerprint

Dive into the research topics of 'Complex refractive-index measurement based on Fresnel’s equations and the uses of heterodyne interferometry'. Together they form a unique fingerprint.

Cite this