Abstract

The determination of optical constants of polymer films is of interest in the study of surfaces for radiative cooling, photothermal solar energy conversion, solar energy conversion systems, and electric conductors, as well as in the use of evaporated films for space applications. These applications have increased the demand for experimentally straightforward techniques for the determination of optical constants of polymer films in the infrared region. There are several methods available for such determinations. However, the calculations are complicated because of the complex dependence of the optical constants on the transmittance (<i>T</i>), the reflectance (<i>R</i>), and the nature of the substrate.

Infrared optical constants and roughness factor functions determination: the HTHRTR method

Marta Klanjšek Gunde and Boris Aleksandrov
Appl. Opt. 30(22) 3186-3196 (1991)

Simultaneous determination of thickness and optical constants of polymer thin film by analyzing transmittance

Changsoo Jung and Bum Ku Rhee
Appl. Opt. 41(19) 3861-3865 (2002)

Unambiguous determination of optical constants of absorbing films by reflectance and transmittance measurements

Ross C. McPhedran, Lindsay C. Botten, David R. McKenzie, and Roger P. Netterfield
Appl. Opt. 23(8) 1197-1205 (1984)

Method for Determining the Optical Constants of Semitransparent Films

S. E. Webber and S. R. Scharber
Appl. Opt. 10(2) 338-341 (1971)

Determination of optical constants of absorbing materials using transmission and reflection of thin films on partially metallized substrates: analysis of the new (T,Rm) technique

A. Hjortsberg
Appl. Opt. 20(7) 1254-1263 (1981)