Abstract
Photon correlation spectroscopy (PCS) is routinely used to investigate the dynamics of colloidal particles undergoing Brownian motion. This technique is applicable to low-density colloidal suspensions in which the effects of multiple light scattering are minimal. We introduce a new low-coherence heterodyne PCS technique that allows direct investigation of colloidal suspensions of higher concentration than previously accessible with standard PCS. In this technique, low-coherence optical heterodyne interferometry is used to suppress multiple light scattering, allowing preferential detection of single-scattering events.
© 1998 Optical Society of America
Full Article | PDF ArticleMore Like This
D. A. Boas, K. K. Bizheva, and A. M. Siegel
Opt. Lett. 23(5) 319-321 (1998)
Ralf Weber and Gustav Schweiger
Appl. Opt. 37(18) 4039-4050 (1998)
Hui Xia, Katsuhiro Ishii, Toshiaki Iwaii, Hongjian Li, and Bingchu Yang
Appl. Opt. 47(9) 1257-1262 (2008)