Spatiotemporal heterodyne detection
arXiv:0908.4465 · doi:10.1364/JOSAA.24.002701
Abstract
We describe a scheme into 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 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.
References in corpus (2)
Cited by in corpus (8)
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