Spatiotemporal heterodyne detection
Optics
2009-09-01 v1
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.
Cite
@article{arxiv.0908.4465,
title = {Spatiotemporal heterodyne detection},
author = {Michael Atlan and Michel Gross},
journal= {arXiv preprint arXiv:0908.4465},
year = {2009}
}