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arXiv · 1407.8292

Reversing the temporal envelope of a heralded single photon using a cavity

Bharath Srivathsan·Gurpreet Kaur Gulati·Alessandro Cerè·Brenda Chng·Christian Kurtsiefer
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Abstract

We demonstrate a way to prepare single photons with a temporal envelope that resembles the time reversal of photons from the spontaneous decay process. We use the photon pairs generated from a time-ordered atomic cascade decay: the detection of the first photon of the cascade is used as a herald for the ground-state transition resonant second photon. We show how the interaction of the heralding photon with an asymmetric Fabry-Perot cavity reverses the temporal shape of its twin photon from a decaying to a rising exponential envelope. This single photon is expected to be ideal for interacting with two level systems.

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Bharath Srivathsan, Gurpreet Kaur Gulati, Alessandro Cerè, Brenda Chng, Christian Kurtsiefer. 2014-07-31. Reversing the temporal envelope of a heralded single photon using a cavity. https://doi.org/10.1103/physrevlett.113.163601

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