High-frequency acousto-optic effects in Bragg reflectors

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

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: Jun 30, 2016
• 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
• Contract Date: Jun 30, 2016