Abstract
We describe a scheme in which a camera is turned into an efficient tunable frequency filter of a few-Hertz bandwidth in an off-axis, heterodyne optical mixing configuration, enabling one to perform parallel, high-resolution coherent spectral imaging. This approach is made possible through the combination of a spatial and temporal modulation of the signal to reject noise contributions. Experimental data obtained with dynamically scattered light by a suspension of particles in Brownian motion is interpreted.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
Mitsuo Takeda and Masahiro Kitoh
J. Opt. Soc. Am. A 9(9) 1607-1614 (1992)
M. Pitter, E. Jakeman, and M. Harris
Opt. Lett. 22(6) 393-395 (1997)
C. Magnain, A. Castel, T. Boucneau, M. Simonutti, I. Ferezou, A. Rancillac, T. Vitalis, J. A. Sahel, M. Paques, and M. Atlan
J. Opt. Soc. Am. A 31(12) 2723-2735 (2014)