Fast thermoelectric photodetector for UV radiation

Astghik Kuzanyan; Vahan Nikoghosyan; Armen Kuzanyan; Sergey Harutyunyan

doi:10.1117/12.2664550

6 June 2023 Fast thermoelectric photodetector for UV radiation

Astghik Kuzanyan, Vahan Nikoghosyan, Armen Kuzanyan, Sergey Harutyunyan

Author Affiliations +

Proceedings Volume 12570, Quantum Optics and Photon Counting 2023; 125700G (2023) https://doi.org/10.1117/12.2664550
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Abstract

Week radiation and single photon detectors have many applications in different areas of modern science and technology. In this work, we study the multi-layer thermoelectric photodetector’s detection pixel consisting of a heat sink (Bi2223), thermoelectric sensor (CeB₆), absorber (Bi2223), and antireflection layer (SiO₂) for UV single photon detection. We examine heat transfer after 3.1 eV and 7.1 eV energy photon absorption in the SiO₂/Bi2223/CeB₆/Bi2223/Al₂O₃ detection pixel. The operating temperature for this structure is 9 K. Computer simulation was carried out based on the equation of heat distribution from a limited volume using the three-dimensional matrix method for differential equations. We study the detector’s signal, count rate, and noise dependence from detection pixel geometry. Calculations show that after absorption of photons with an energy of 7.1 eV the generated signal maximum will be about 127 nV and achieved up to 10 ps after photon absorption. The full width at half maximum of the obtained signal is from 34 – 228 ps, depending on the detection pixel layer thicknesses. Such a signal can be registered without preliminary amplification. It is shown that this detection pixel provides a gigahertz count rate. Using Bi2223 high-temperature superconductors as an absorber and heat sink allowed less Johnson noise.

Conference Presentation

Citation Download Citation

Astghik Kuzanyan, Vahan Nikoghosyan, Armen Kuzanyan, and Sergey Harutyunyan "Fast thermoelectric photodetector for UV radiation", Proc. SPIE 12570, Quantum Optics and Photon Counting 2023, 125700G (6 June 2023); https://doi.org/10.1117/12.2664550

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE