A high-performance thermoelectric single-photon detector for telecom wavelengths

Astghik A. Kuzanyan; Armen S. Kuzanyan; Vahan R. Nikoghosyan

doi:10.1117/12.2520105

30 April 2019 A high-performance thermoelectric single-photon detector for telecom wavelengths

Astghik A. Kuzanyan, Armen S. Kuzanyan, Vahan R. Nikoghosyan

Proceedings Volume 11027, Quantum Optics and Photon Counting 2019; 110270K (2019) https://doi.org/10.1117/12.2520105
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

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.

Citation Download Citation

Astghik A. Kuzanyan, Armen S. Kuzanyan, and Vahan R. Nikoghosyan "A high-performance thermoelectric single-photon detector for telecom wavelengths", Proc. SPIE 11027, Quantum Optics and Photon Counting 2019, 110270K (30 April 2019); https://doi.org/10.1117/12.2520105

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