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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2021, Volume 114, Issue 10, Pages 635–642
DOI: https://doi.org/10.31857/S123456782122002X (Mi jetpl6548) 		 
This article is cited in 4 scientific papers (total in 4 papers)

OPTICS AND NUCLEAR PHYSICS

Direct measurement of the correlation function of optical–terahertz biphotons

A. A. Leontyev, K. A. Kuznetsov, P. A. Prudkovskii, D. A. Safronenkov, G. Kh. Kitaeva

Faculty of Physics, Moscow State University, Moscow, 119991 Russia
Full-text PDF (729 kB) Citations (4)
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DOI: https://doi.org/10.31857/S123456782122002X
Abstract: The second-order correlation function which characterizes the quantum correlation between the optical and terahertz photons generated under spontaneous parametric down-conversion has been measured for the first time. A scheme of experiment based on the analysis of analog signals from terahertz and optical detectors has been proposed. Various approaches to exclude the effect of electronic and thermal noise on the measured correlation level have been discussed. The results make it possible to expand quantum optical technologies such as quantum calibration of detectors, fabrication of single-photon sources, and imaging with single-pixel detectors to the terahertz range.
Funding agency Grant number
Russian Foundation for Basic Research 20-32-90232
20-02-00621A
This work was supported by the Russian Foundation for Basic Research (project nos. 20-32-90232 and 20-02-00621A).
Received: 18.10.2021
Revised: 18.10.2021
Accepted: 19.10.2021
English version:
Journal of Experimental and Theoretical Physics Letters, 2021, Volume 114, Issue 10, Pages 565–571
DOI: https://doi.org/10.1134/S0021364021220082
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. A. Leontyev, K. A. Kuznetsov, P. A. Prudkovskii, D. A. Safronenkov, G. Kh. Kitaeva, “Direct measurement of the correlation function of optical–terahertz biphotons”, Pis'ma v Zh. Èksper. Teoret. Fiz., 114:10 (2021), 635–642; JETP Letters, 114:10 (2021), 565–571
Citation in format AMSBIB
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\paper Direct measurement of the correlation function of optical--terahertz biphotons
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\vol 114
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\pages 635--642
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