Experimental requirements for entangled two-photon spectroscopy

Lerch, Stefan; Stefanov, André (2021). Experimental requirements for entangled two-photon spectroscopy. The journal of chemical physics, 155(6), 064201. American Institute of Physics AIP 10.1063/5.0050657

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Coherently controlling the spectral properties of energy-entangled photons is a key component of future entangled two-photon spectroscopy schemes that are expected to provide advantages with respect to classical methods. We present here an experimental setup based on a grating compressor. It allows for the spectral shaping of entangled photons with a sevenfold increase in resolution, compared to previous setups with a prism compressor. We evaluate the performances of the shaper by detecting sum frequency generation in a nonlinear crystal with both classical pulses and entangled photon pairs. The efficiency of both processes is experimentally compared and is in accordance with a simple model relating the classical and entangled two-photon absorption coefficients. Finally, the entangled two-photon shaping capability is demonstrated by implementing an interferometric transfer function.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > Lasers

UniBE Contributor:

Lerch, Stefan and Stefanov, André

Subjects:

500 Science > 530 Physics

ISSN:

0021-9606

Publisher:

American Institute of Physics AIP

Language:

English

Submitter:

André Stefanov

Date Deposited:

29 Mar 2022 17:40

Last Modified:

29 Mar 2022 17:40

Publisher DOI:

10.1063/5.0050657

BORIS DOI:

10.48350/167274

URI:

https://boris.unibe.ch/id/eprint/167274

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