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High-frequency acousto-optic effects in Bragg reflectors

Farmer, D.J.; Akimov, Andrey V.; Gippius, N.A.; Bailey, James; Sharp, James S.; Kent, Anthony

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Authors

D.J. Farmer

ANDREY AKIMOV ANDREY.AKIMOV@NOTTINGHAM.AC.UK
Principal Research Fellow

N.A. Gippius

James Bailey

JAMES SHARP james.sharp@nottingham.ac.uk
Associate Professor

ANTHONY KENT anthony.kent@nottingham.ac.uk
Professor of Physics



Abstract

Picosecond acoustic interferometry was used to study the acousto-optic properties of a distributed Bragg reflector (DBR) manufactured from two immiscible polymers (cellulose acetate and polyvinylcarbyzole). Picosecond strain pulses were injected into the structure and changes in its reflectance were monitored as a function of time. The reflectance exhibited single-frequency harmonic oscillations as the strain pulse traversed the DBR. A transfer matrix method was used to model the reflectance of the DBR in response to interface modulation and photo-elastic effects. This work shows that photo-elastic effects can account for the acousto-optic response of DBRs with acoustically matched layers.

Citation

Farmer, D., Akimov, A. V., Gippius, N., Bailey, J., Sharp, J. S., & Kent, A. (2014). High-frequency acousto-optic effects in Bragg reflectors. Optics Express, 22(12), 15218-15231. https://doi.org/10.1364/OE.22.015218

Journal Article Type Article
Acceptance Date Mar 23, 2014
Publication Date Jun 13, 2014
Deposit Date Jun 30, 2016
Publicly Available Date Mar 28, 2024
Journal Optics Express
Electronic ISSN 1094-4087
Publisher Optical Society of America
Peer Reviewed Peer Reviewed
Volume 22
Issue 12
Pages 15218-15231
DOI https://doi.org/10.1364/OE.22.015218
Public URL https://nottingham-repository.worktribe.com/output/730723
Publisher URL https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-12-15218

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