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Spatial properties and coherence of the high density phase in the microcavity optical parametric oscillator
Author(s) -
Skolnick M. S.,
Sanvitto D.,
Krizhanovskii D. N.,
Love A. P. D.,
Whittaker D. M.,
Roberts J. S.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200642213
Subject(s) - coherence (philosophical gambling strategy) , physics , degree of coherence , photonics , optics , phase (matter) , local oscillator , quantum optics , coherence length , quantum , parametric statistics , quantum mechanics , phase noise , statistics , superconductivity , mathematics
Recent work on imaging of the quantum fluid in the microcavity optical parametric oscillator is described. It is shown that the high density phase has an intrinsic, spatially non‐uniform distribution arising from quasi‐particle interactions which blue shift the dispersion curve, and in plane fluctuations in the photonic potential of the microcavity. Isolation of single modes using spectral and spatial resolution enables the coherence of the OPO to be studied. Particle‐particle interactions are shown to play a key role in determining the temporal coherence. The behaviour of the coherence of the macroscopically occupied phase is shown to contrast strongly with that of a non‐interacting system. Evidence for signal‐idler energy and phase correlations is obtained. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)