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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 16, Pages 39–42
DOI: https://doi.org/10.21883/PJTF.2020.16.49853.18344 (Mi pjtf5022) 		 
This article is cited in 4 scientific papers (total in 4 papers)

Improving the efficiency of the integrated optical superconducting single photon detector on a lithium niobate substrate by means of an additional cover layer with a high refractive index

M. V. Parfenovab, A. V. Shamraya

a Ioffe Institute, St. Petersburg
b Peter the Great St. Petersburg Polytechnic University
Full-text PDF (303 kB) Citations (4)
DOI: https://doi.org/10.21883/PJTF.2020.16.49853.18344
Abstract: A mechanism of amplification of interaction between optical radiation and superconducting niobium nitride thin film placed on the surface of optical waveguides, which are fabricated on lithium niobate substrate, is investigated. This effect can be obtained with help of an additional covering layer with high refractive index. It was shown that adiabatic deformation of waveguide modes can increase absorption of light in a superconducting layer up to $\sim$1 dB/$\mu$m, making it possible to fabricate a SSPD on lithium niobate with quantum efficiency of about 70%.
Keywords: single photon detector, optical waveguide, lithium niobate, optical mode, integrated optics, quantum photonics.
Funding agency Grant number
Russian Foundation for Basic Research 18-07-01174
This work was supported by the Russian Foundation for Basic Research, project no. 18-07-01174.
Received: 17.04.2020
Revised: 17.04.2020
Accepted: 18.05.2020
English version:
Technical Physics Letters, 2020, Volume 46, Issue 8, Pages 819–822
DOI: https://doi.org/10.1134/S1063785020080258
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. V. Parfenov, A. V. Shamray, “Improving the efficiency of the integrated optical superconducting single photon detector on a lithium niobate substrate by means of an additional cover layer with a high refractive index”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:16 (2020), 39–42; Tech. Phys. Lett., 46:8 (2020), 819–822
Citation in format AMSBIB
\Bibitem{ParSha20}
\by M.~V.~Parfenov, A.~V.~Shamray
\paper Improving the efficiency of the integrated optical superconducting single photon detector on a lithium niobate substrate by means of an additional cover layer with a high refractive index
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 46
\issue 16
\pages 39--42
\mathnet{http://mi.mathnet.ru/pjtf5022}
\crossref{https://doi.org/10.21883/PJTF.2020.16.49853.18344}
\elib{https://elibrary.ru/item.asp?id=44041085}
\transl
\jour Tech. Phys. Lett.
\yr 2020
\vol 46
\issue 8
\pages 819--822
\crossref{https://doi.org/10.1134/S1063785020080258}
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    • This publication is cited in the following 4 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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