Modeling of Heat Propagation Processes in Detection Pixel of Thermoelectric Single-Photon Detector with High-Temperature Superconducting Absorber

Kuzanyan, A. A.; Nikoghosyan, V. R.; Margiani, N. G.; Mumladze, G. A.; Harutyunyan, Syuzanna R.; Kuzanyan, A. S.

doi:10.3103/s1068337222020141

Cited by 9 publications

(6 citation statements)

References 33 publications

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“…Building upon the research initiated in Ref. 26, our investigation focuses on a three-layer detector pixel configuration referred to as WLW. This configuration consists of a tungsten absorber, a thermoelectric sensor made of La 0.99 Ce 0.01 B 6 , and a tungsten heat sink.…”

Section: Methodsmentioning

confidence: 99%

“… – 23 Various materials have been utilized in the construction of these detection pixels, enabling their operation at temperatures ranging from 1to 9 K. The results demonstrate that TSPDs exhibit high efficiency, and photon number-resolving detection is achievable with a count rate of 10 14 cps 24 , 25 . Recent research has focused on investigating the signal observed on the CeB 6 sensor and the equivalent power of noise in the detection pixel with a Bi-2223 superconducting absorber at an operating temperature of 9 K 26 . The signal-to-noise ratio (SNR) is calculated for the absorption of photons with energies ranging from 0.8 eV to 1 keV.…”

Section: Introductionmentioning

confidence: 99%

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Ultraviolet thermoelectric single photon detector with high signal-to-noise ratio

Kuzanyan,

Nikoghosyan,

Kuzanyan

2024

Opt. Eng.

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In this paper, we present the results of simulating heat propagation processes in the thermoelectric detection pixel after absorbing single photons of UV radiation with energies ranging from 7.1 to 124 eV. The detection pixels, with an operating temperature of 1 K, consist of an absorber (W), a thermoelectric sensor (La 0.99 Ce 0.01 B 6 ), a heat sink (W), and a substrate (Al 2 O 3 ). The heat transfer processes in the detection pixels with different layer thicknesses and surface areas were modeled and simulated using the three-dimensional matrix method for differential equations based on the equation of heat propagation from a limited volume. The temporal dependencies of the temperature at various points in the detection pixels and the average temperature of the layers' surfaces were calculated. The main signal parameters, such as the maximum value, time to the peak value, decay time, full width at half maximum, and signal power, were determined. In addition, the phonon noise, Johnson noise, and the total noise equivalent power of the detection pixels were calculated. The data obtained show how the signal-to-noise ratio (SNR) depends on the energy of the absorbed photon, the geometry of the detection pixel, and the bandwidth of the signal measurement. Moreover, it was observed that the SNR exceeds unity multiple times for the absorption of photons of all considered energies in the detection pixel with a surface area of 1μm 2 .

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultraviolet thermoelectric single photon detector with high signal-to-noise ratio

Kuzanyan,

Nikoghosyan,

Kuzanyan

2024

Opt. Eng.

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“…Through modeling and computer simulations, we investigated the heat propagation processes in thermoelectric detection pixel of different designs 22 – 24 In a previous study, 22 we proposed the design of a SiO2/W/CeB6/W four-layer detection pixel. It is justified that the detector with such a detection pixel can provide for the system efficiency above 90% for photons with energy 0.8–4 eV.…”

Section: Introductionmentioning

confidence: 99%

“…We have shown that a thermoelectric detector is able to count the number of absorbed photons. The design of the detection pixel consisting of a high-temperature superconductor heat sink and absorber (Bi-2223), thermoelectric sensor (CeB6), with and without antireflection layer (SiO2) located on a sapphire substrate is also studied 24 . The processes of heat propagation in this detection pixel after absorption of photons with an energy of 0.8 eV–1 keV have been studied.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale thermoelectric detection pixel for single-photon detection from far ultraviolet to near infrared

Kuzanyan,

Nikoghosyan,

Kuzanyan

2024

Opt. Eng.

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“…The square of the Johnson noise equivalent power is proportional to the electrical resistance of the functional layers of the detection pixel (absorber and sensor). It is the reason why, in some detection pixel designs, we considered a superconducting absorber and a heat sink [31,32]. In this work, we consider the processes of heat propagation in the TSPD detection pixel consisting of the Bi-2223 heat sink, CeB6 sensor, Bi-2223 absorber, and SiO2 antireflection layer arranged in series on the Al2O3 substrate (SiO2/Bi2223/CeB6/Bi2223/Al2O3) after 3.1 eV (λ=0.4 µm) and 7.1 eV (λ=0.175 µm) energy photon absorption.…”

Section: Introductionmentioning

confidence: 99%

Fast thermoelectric photodetector for UV radiation

Kuzanyan

Nikoghosyan

Kuzanyan

et al. 2023

Quantum Optics and Photon Counting 2023

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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.

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Modeling of Heat Propagation Processes in Detection Pixel of Thermoelectric Single-Photon Detector with High-Temperature Superconducting Absorber

Cited by 9 publications

References 33 publications

Ultraviolet thermoelectric single photon detector with high signal-to-noise ratio

Ultraviolet thermoelectric single photon detector with high signal-to-noise ratio

Nanoscale thermoelectric detection pixel for single-photon detection from far ultraviolet to near infrared

Fast thermoelectric photodetector for UV radiation

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