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Proceedings Paper

A high-performance thermoelectric single-photon detector for telecom wavelengths
Author(s): Astghik A. Kuzanyan; Armen S. Kuzanyan; Vahan R. Nikoghosyan
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Paper Abstract

In this work the problem is solved to achieve high detection efficiency of TSPD for telecommunication systems. A fourlayer detection pixel of TSPD is proposed which consists of a photon absorber, thermoelectric sensor and the heat sink that also play the role of an electrical contact. The computer modeling was carried out using the equation for heat propagation from a limited volume and of the three-dimensional matrix method for differential equations. The results of computer simulation of heat propagation processes in the four-layer detection pixel of TSPD after the absorption of single photons with the 0.8 eV energy (λ = 1550 nm) are presented. Various geometries of the detection pixel consisting of lanthanum hexaboride nanoparticles as absorber material, the cerium hexaboride as a thermoelectric sensor and tungsten as electrical contact and heat sink are considered. It is shown that a TSPD with a four-layer detection pixel will have the gigahertz count rate and detection efficiency exceeding 90%. Taking into account the advantages of TSPD over the other types of detectors it can be argued that the four-layer detection pixel of the thermoelectric detector has strong prospects to solve a number of single-photon detection tasks.

Paper Details

Date Published: 30 April 2019
PDF: 9 pages
Proc. SPIE 11027, Quantum Optics and Photon Counting 2019, 110270K (30 April 2019); doi: 10.1117/12.2520105
Show Author Affiliations
Astghik A. Kuzanyan, Institute for Physical Research (Armenia)
Armen S. Kuzanyan, Institute for Physical Research (Armenia)
Vahan R. Nikoghosyan, Institute for Physical Research (Armenia)

Published in SPIE Proceedings Vol. 11027:
Quantum Optics and Photon Counting 2019
Ivan Prochazka; Roman Sobolewski; Ralph B. James; Peter Domokos; Adam Gali, Editor(s)

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