Abstract
The results of the simulation of heat propagation processes in the multilayer detection pixel of a single-photon thermoelectric detector consisting of heat sink (Bi-2223), thermoelectric sensor (CeB6), absorber (Bi-2223), and antireflection layer (SiO2) arranged in series on sapphire substrate (Al2O3) are presented. The design of the detection pixel without an antireflection layer is also considered. Simulation of the processes of absorbed photons heat transfer is carried out based on the equation of heat propagation from a limited volume. The cases of absorption of photons with energies of 0.8–1000 eV in detection pixels with a surface of 4 and 1 μm2, different thicknesses of absorber and sensor at a fixed operating temperature of the detector of 9 K are studied. Temporal dependences of voltage arising on the sensor, the equivalent power of Johnson and phonon noise are investigated, the signal-to-noise ratio is calculated, and the ways to increase this parameter are proposed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
