Interferometric two-photon-absorption spectroscopy with three entangled photons

We propose an interferometric pump-probe technique that employs three entangled photons generated by cascaded spontaneous parametric downconversion. A Mach–Zehnder interferometer made of two three-port waveguide arrays is inserted in the optical path. Two independent phases introduced to manipulate...

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Bibliographic Details
Published in:Applied physics letters 2020-04, Vol.116 (17)
Main Authors: Ye, Lyuzhou, Mukamel, Shaul
Format: Article
Language:English
Subjects:
Applied physics
Interferometry
Mach-Zehnder interferometers
Photon absorption
Photons
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Summary:We propose an interferometric pump-probe technique that employs three entangled photons generated by cascaded spontaneous parametric downconversion. A Mach–Zehnder interferometer made of two three-port waveguide arrays is inserted in the optical path. Two independent phases introduced to manipulate the entangled photon state serve as control parameters and can selectively excite matter pathways. Compared to two-photon-absorption of an entangled photon-pair, the three-photon signals are significantly enhanced by frequency-dispersed photon-counting detection.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0004617