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 | |||||||||
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| 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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