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Optics Letters

Sub-shot-noise microscopy: imaging of faint phase objects with squeezed light

Mikhail I. Kolobov, Prem Kumar

Published Jun 1, 1993• 59 citations
Publisher

Abstract

We propose a scheme that uses spatially multimode squeezed light, generated by means of a traveling-wave optical parametric amplifier, with which a faint phase object can be imaged with sensitivity better than the shot-noise limit.
DOI
10.1364/ol.18.000849

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Summary form only given. Optical imaging is one of the important potential applications for nonclassic states of light. It has been shown that spatially broadband squeezed light can be used to image faint objects with sub-shot-noise sensitivity. Broad spatial bandwidth of an optical parametric amplifier (OPA), determined by phase-matching conditions, makes it a good choice for studying the feasibility of imaging with nonclassic states. Here, we report, to our knowledge, the first observation of noiseless amplification of an image by means of phase-sensitive parametric amplification.
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