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Nano-displacement measurements using spatially multimode squeezed light

Treps, N.; Grosse, Nicolai; Bowen, Warwick P; Hsu, Magnus; Maitre, A; Fabre, Claude; Bachor, Hans; Lam, Ping Koy


We demonstrate the possibility of surpassing the quantum noise limit for simultaneous multi-axis spatial displacement measurements that have zero mean values. The requisite resources for these measurements are squeezed light beams with exotic transverse mode profiles. We show that, in principle, lossless combination of these modes can be achieved using the non-degenerate Gouy phase shift of optical resonators. When the combined squeezed beams are measured with quadrant detectors, we...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Journal of Optics B: Quantum and Semiclassical Optics
DOI: 10.1088/1464-4266/6/8/007


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