Spatiotemporal heterodyne detection.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Journal of the Optical Society of America. A, Optics, image science, and vision
دوره 24 9 شماره
صفحات -
تاریخ انتشار 2007