Title
Measurement Of The Induced Refractive Index In A Photothermorefractive Glass By A Liquid-Cell Shearing Interferometer
Abstract
A liquid-cell shearing interferometer was developed to measure refractive-index variations (Δn) in transparent materials. The cell was filled with a liquid having a matched refractive index. The achieved resolution was better than 1/1000 of a fringe shift and resulted in a Δn measurement sensitivity down to 10-7for 1-mm-thick samples. A refractive-index increment in photothermorefractive glass of up to 5 × 10-6was observed after UV exposure at 325 nm. A refractive-index decrement of up to 1 × 10-3was observed after thermal development of the exposed sample. It was proved that photothermorefractive glass obeys the reciprocity law; i.e., Δn depends on the UV dosage but does not depend on the irradiance. © 2002 Optical Society of America.
Publication Date
1-1-2002
Publication Title
Applied Optics
Volume
41
Issue
10
Number of Pages
1864-1871
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1364/AO.41.001864
Copyright Status
Unknown
Socpus ID
0036543417 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/0036543417
STARS Citation
Efimov, Oleg M.; Glebov, Leonid B.; and Andre, Hervé P., "Measurement Of The Induced Refractive Index In A Photothermorefractive Glass By A Liquid-Cell Shearing Interferometer" (2002). Scopus Export 2000s. 2861.
https://stars.library.ucf.edu/scopus2000/2861