Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Interferometric measurement of refractive-index change in photosensitive glass

Published

Author(s)

Tasshi Dennis, E. M. Gill, Sarah L. Gilbert

Abstract

We report on a technique for determining the change in the refractive index of photosensitive glass. We have demonstrated our interferometer-based technique on fiber preform and bulk glass samples, achieving an optical: path-difference (OPD) repeatability of 0.2 nm. For the bulk glass sample we measured an OPD of 15.2 ± 3.0 nm, corresponding to an index change of 2.1 ± 0.7 x 10-5 Our technique was found to he insensitive to the effects of photodarkening and material compaction.
Citation
Optics Letters
Volume
40
Issue
10

Citation

Dennis, T. , Gill, E. and Gilbert, S. (2001), Interferometric measurement of refractive-index change in photosensitive glass, Optics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=4945 (Accessed April 21, 2024)
Created April 1, 2001, Updated February 19, 2017