Ultrasonic modulation of multiply scattered light

Autor:	W. Leutz, G. Maret
Rok vydání:	1995
Předmět:	Physics business.industry Mean free path Condensed Matter Physics Light scattering Electronic Optical and Magnetic Materials Interferometry symbols.namesake Light intensity Optics Amplitude Modulation symbols Ultrasonic sensor Electrical and Electronic Engineering Rayleigh scattering business
Zdroj:	Physica B: Condensed Matter. 204:14-19
ISSN:	0921-4526
DOI:	10.1016/0921-4526(94)00238-q
Popis:	We report the first observation of ultrasonic modulation of multiple light scattering speckles. The modulation at ƒ a = 2 MHz of the temporal field autocorrelation function 〈E(0)E ∗ (t)〉 of the light scattered from concentrated aqueous suspensions of polystytrene beads was measured. In addition, when using ƒ a = 27 MHz , the light intensity spectra measured with a Fabry-Perot interferometer show four inelastic peaks at ƒa and 2ƒa from the principal Rayleigh peak. The modulation amplitudes obtained from both techniques were found to increase with the ultrasonic amplitude and to vary with the mean free path of light in agreement with our simple model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a13bd75571fa74ecd9067313c01e78c https://doi.org/10.1016/0921-4526(94)00238-q Zobrazit plný text záznamu Full Text from ScienceDirect