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arXiv:0911.0251 · Physical Review A

Spatial-dispersion cancellation in quantum interferometry

David S. Simon, Alexander V. Sergienko

Published Nov 10, 2009• 15 citations
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Abstract

We investigate cancellation of spatial aberrations induced by an object placed in a quantum coincidence interferometer with type-II parametric down conversion as a light source. We analyze in detail the physical mechanism by which the cancellation occurs and show that the aberration cancels only when the object resides in one particular plane within the apparatus. In addition, we show that for a special case of the apparatus it is possible to produce simultaneous cancellation of both even-order and odd-order aberrations in this plane.

DOI
10.1103/physreva.80.053813

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We investigate cancellation of spatial aberrations induced by an object placed in a quantum coincidence interferometer with type-II parametric down conversion as a light source. We analyze in detail the physical mechanism by which the cancellation occurs and show that the aberration cancels only when the object resides in one particular plane within the apparatus. In addition, we show that for a special case of the apparatus it is possible to produce simultaneous cancellation of both even-order and odd-order aberrations in this plane.
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We describe our theoretical and experimental results demonstrating two new techniques for manipulating dispersion in quantum interferometry using spectral and spatial properties of optical entanglement. First, we present a novel interferometer design allowing to demonstrate a new effect of simultaneous even- and odd-order spectral dispersion cancellation in a single experiment using entangled photons with frequency anti-correlated spectrum. Second, we for the first time demonstrate a spatial counterpart of the known quantum dispersion cancellation that leads to the removal of a detrimental effect of spatial aberrations. We discuss potential applications of novel technologies in high-resolution optical measurement and for designing aberration-free imaging schemes.