Auto-heterodyne characterization of narrow-band photon pairs
- URL: http://arxiv.org/abs/2101.03144v2
- Date: Tue, 20 Jul 2021 10:07:56 GMT
- Title: Auto-heterodyne characterization of narrow-band photon pairs
- Authors: Vindhiya Prakash, Aleksandra Sierant, Morgan W. Mitchell
- Abstract summary: We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter.
The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
- Score: 68.8204255655161
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We describe a technique to measure photon pair joint spectra by detecting the
time-correlation beat note when non-degenerate photon pairs interfere at a
beamsplitter. The technique implements a temporal analog of the Ghosh-Mandel
effect with one photon counter and a time-resolved Hong-Ou-Mandel interference
with two. It is well suited to characterize pairs of photons, each of which can
interact with a single atomic species, as required to study recently predicted
photon-photon interaction in sub-wavelength atomic arrays. With this technique,
we characterize photon pairs from cavity-enhanced parametric downconversion
with a bandwidth $\approx$ 5 MHz and frequency separation of $\sim$ 200 MHz
near the D$_1$ line of atomic Rb.
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