Nonlinear interferometry via Fock-state projection.
نویسندگان
چکیده
We use a photon-number-resolving detector to monitor the photon-number distribution of the output of an interferometer, as a function of phase delay. As inputs we use coherent states with mean photon number up to seven. The postselection of a specific Fock (photon-number) state effectively induces high-order optical nonlinearities. Following a scheme by Bentley and Boyd [Opt. Express 12, 5735 (2004).10.1364/OPEX.12.005735], we explore this effect to demonstrate interference patterns a factor of 5 smaller than the Rayleigh limit.
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ورودعنوان ژورنال:
- Physical review letters
دوره 96 20 شماره
صفحات -
تاریخ انتشار 2006