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Frequency-modulated light scattering in colloidal suspensions
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 102, no 6, 061104- p.Article in journal (Refereed) Published
Abstract [en]

Frequency-modulated light field fluctuations due to moving particles in colloidal suspensions are examined using heterodyne interferometry. The power spectrum is the combined result of a time-of-flight-related frequency distribution due to light scattering and frequency shifts due to the Doppler effect. An approximation model is developed based on diffusion theory and verified experimentally. The potential for application towards comprehensive diagnosis of both particle dynamics and optical properties of the examined media is discussed.

Place, publisher, year, edition, pages
2013. Vol. 102, no 6, 061104- p.
Keyword [en]
Diffusing-Wave Spectroscopy, Random-Media, Diode-Laser, Transition
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-119457DOI: 10.1063/1.4792220ISI: 000315053300004OAI: oai:DiVA.org:kth-119457DiVA: diva2:611688
Funder
Swedish Research Council, 621-2011-4265
Note

QC 20130318. Correction in: Applied Physics Letters, vol 102, issue 10, Article Number 109903. DOI: 10.1063/1.4795242

WOS:000316501200098

Available from: 2013-03-18 Created: 2013-03-14 Last updated: 2017-06-13Bibliographically approved

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