Frequency-modulated light scattering in colloidal suspensions
2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 102, no 6, 061104- p.Article in journal (Refereed) Published
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.
Diffusing-Wave Spectroscopy, Random-Media, Diode-Laser, Transition
IdentifiersURN: urn:nbn:se:kth:diva-119457DOI: 10.1063/1.4792220ISI: 000315053300004OAI: oai:DiVA.org:kth-119457DiVA: diva2:611688
FunderSwedish Research Council, 621-2011-4265
QC 20130318. Correction in: Applied Physics Letters, vol 102, issue 10, Article Number 109903. DOI: 10.1063/1.4795242