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Modulation of multiply scattered coherent light by ultrasonic pulses: An analytical model

Sakadžić, Sava and Wang, Lihong V. (2005) Modulation of multiply scattered coherent light by ultrasonic pulses: An analytical model. Physical Review E, 72 (3). Art. No. 036620. ISSN 1539-3755. doi:10.1103/PhysRevE.72.036620. https://resolver.caltech.edu/CaltechAUTHORS:20161118-134014258

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Abstract

We present an analytical solution for the acousto-optical modulation of multiply scattered light in a medium irradiated with a train of ultrasound pulses. Previous theory is extended to cases where the ultrasound-induced optical phase increments between the different scattering events are strongly correlated, and it is shown that the approximate similarity relation still holds. The relation between the ultrasound induced motions of the background fluid and the optical scatterers is generalized, and it is shown that correlation exists between the optical phase increments that are due to the scatterer movement and the optical phase increments that are due to the modulation of the optical index of refraction. Finally, it is shown that compared with the spectrum of ultrasound pulses, the power spectral density of acousto-optically modulated light is strongly attenuated at the higher ultrasound frequencies.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevE.72.036620DOIArticle
http://journals.aps.org/pre/abstract/10.1103/PhysRevE.72.036620PublisherArticle
ORCID:
AuthorORCID
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2005 The American Physical Society. Received 24 February 2005; published 30 September 2005.
Issue or Number:3
Classification Code:PACS: 42.25.Dd, 42.90.+m
DOI:10.1103/PhysRevE.72.036620
Record Number:CaltechAUTHORS:20161118-134014258
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161118-134014258
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72172
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Nov 2016 22:15
Last Modified:11 Nov 2021 04:57

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