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Quantum and Semiclassical Optics Journal of the European Optical Society Part B

Parametric amplification of images

Éric Lantz, F. Devaux

Published Apr 1, 1997• 23 citations
Publisher

Abstract

Image parametric amplification and its applications are summarized. The link between resolution and phase matching is presented. Then applications to ultrafast imaging and imaging through diffusing media are given. Last, degenerate schemes are proved to permit polychromatic amplification as well as phase-sensitive amplification.
DOI
10.1088/1355-5111/9/2/014

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Image parametric amplification and its applications are reviewed in this paper. Phase matching conditions allow the resolution to be determined and spatial frequency filtering to be performed. The phase conjugate idler image can be used to cancel aberrations. Then, time gating properties are applied to ultrafast imaging, imaging through diffusing media, and lifetime fluorescence imaging. Degenerate schemes permit polychromatic amplification as well as phase-sensitive amplification, which is proved to be noiseless with respect to spatial fluctuations at the quantum level. Finally, it is shown that the spatial fluctuations of the signal and the idler are subshot noise correlated.
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