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Effect of low-Raman window position on correlated photon-pair generation in a chalcogenide Ge11.5As24Se64.5 nanowire

He, J; Xiong, C; Clark, A. S.; Collins, M. J.; Gai, X; Choi, D. Y.; Madden, S. J.; Luther-Davies, B; Eggleton, B. J.


We investigated correlated photon-pair generation via spontaneous four-wave mixing in an integrated chalcogenideGe11.5As24Se64.5photonicnanowire. The coincidence to accidental ratio, a key measurement for the quality of correlated photon-pair sources, was measured to be only 0.4 when the photon pairs were generated at 1.9 THz detuning from the pump frequency due to high spontaneous Raman noise in this regime. However, the existence of a characteristic low-Raman window at around 5.1 THz in this...[Show more]

CollectionsANU Research Publications
Date published: 2012-12-18
Type: Journal article
Source: Journal of Applied Physics. 112.12 (2012).:123101-1 - 123101-5
DOI: 10.1063/1.4769740


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