Abstract:
The conditions for the generation and detection of quantum-correlated pairs of optical and terahertz photons in the process of strongly frequency-nondegenerate parametric down-conversion of light are investigated. An approach based on increasing the frequency of the optical pump is proposed, whereby the power of a weak flux of terahertz idler photons can be measured for a wide range of parametric gain coefficients, down to the onset of the spontaneous down-conversion regime, using the same terahertz detector with a limited dynamic range. It is shown experimentally that the doubling of the frequency of pulsed laser pump leads to a 5-fold reduction in the lowest value of parametric gain that is still sufficient for detecting terahertz idler photons with a cooled hot-electron bolometer.
Citation:
V. D. Sultanov, K. A. Kuznetsov, A. A. Leontjev, G. Kh. Kitaeva, “Generation of optical-terahertz biphotons and detection of their terahertz component under frequency-nondegenerate parametric down-conversion”, Pis'ma v Zh. Èksper. Teoret. Fiz., 112:5 (2020), 297–302; JETP Letters, 112:5 (2020), 269–273
\Bibitem{SulKuzLeo20}
\by V.~D.~Sultanov, K.~A.~Kuznetsov, A.~A.~Leontjev, G.~Kh.~Kitaeva
\paper Generation of optical-terahertz biphotons and detection of their terahertz component under frequency-nondegenerate parametric down-conversion
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2020
\vol 112
\issue 5
\pages 297--302
\mathnet{http://mi.mathnet.ru/jetpl6245}
\crossref{https://doi.org/10.31857/S1234567820170024}
\elib{https://elibrary.ru/item.asp?id=45139438}
\transl
\jour JETP Letters
\yr 2020
\vol 112
\issue 5
\pages 269--273
\crossref{https://doi.org/10.1134/S0021364020170099}
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\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85096319045}
Linking options:
https://www.mathnet.ru/eng/jetpl6245
https://www.mathnet.ru/eng/jetpl/v112/i5/p297
This publication is cited in the following 8 articles:
A. F. Khairullin, A. M. Smirnova, N. M. Arslanov, A. B. Fedotov, S. A. Moiseev, I. V. Fedotov, M. A. Smirnov, JETP Letters, 119:5 (2024), 345–351
K. G. Katamadze, A. V. Pashchenko, A. V. Romanova, S. P. Kulik, JETP Letters, 115:10 (2022), 581–595
T. I. Novikova, A. A. Leontyev, G. Kh. Kitaeva, JETP Letters, 116:6 (2022), 353–359
Alexander M. Lerer, Galina S. Makeeva, Vladimir V. Cherepanov, Vladimir L. Derbov, Laser Physics, Photonic Technologies, and Molecular Modeling, 2022, 6
D. A. Balakin, A. V. Belinsky, JETP Letters, 113:9 (2021), 572–575
P. A. Prudkovskii, JETP Letters, 114:4 (2021), 173–179
P. Prudkovskii, A. Leontyev, K. Kuznetsov, G. Kitaeva, Sensors, 21:15 (2021), 4964
A. A. Leontyev, K. A. Kuznetsov, P. A. Prudkovskii, D. A. Safronenkov, G. Kh. Kitaeva, JETP Letters, 114:10 (2021), 565–571
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