Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Not Accessible

Your library or personal account may give you access

Abstract

We describe a three-stage process for the determination of the optical constants n and k of thin absorbing films on the basis of reflectance, transmittance, and thickness measurements. The first stage uses a bivariate optimization based on the functions (1 ± R)/T, R denoting a reflectance and T the transmittance. The second stage uses a phase-variate approach based on an algorithm for locating the complex zeros of analytic functions. The third stage uses an evolution curve, giving the single-wavelength reflectance as a function of film thickness. We illustrate the process using practical examples drawn from recent studies of films of amorphous silicon, hydrogenated carbon, and hydrogenated silicon.

© 1984 Optical Society of America

Full Article  |  PDF Article
More Like This

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (5)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (20)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved