TY  - CONF
AU  - Gol’tsman, G. N.
AU  - Gershenzon, E. M.
A2  - 18th International Conference on Infrared and Millimeter Waves
ED  - Birch, J. R.
ED  - Parker, T. J.
PY  - 1993
DA  - 1993//
TI  - High speed hot-electron superconducting bolometer
T2  - Proc. SPIE
BT  - Proc. SPIE
SP  - 181
EP  - 182
VL  - 2104
PB  - SPIE
KW  - NbN HEb
KW  - Nb
KW  - Al
AB  - Physical limitation of response time of a superconducting bolometer as well as the nature of non-equilibrium detection of radiation have been investigated for Al, Nb and NbN thin films in spectral range from submillimeter to near-infraredwavelengths [1,2]. In the case of ideal heat removal from the film with the f_‘. 100A thickness the detection mechanism is an electron heating effect that is not selective to radiation wavelength in a very broad range. The response time ofan electron heating bolometer is determined by an electron-phonon interaction time. This time is of about 10 ns, 0.5 ns and 20 ps for Al, Nb, and NbN correspondingly near the critical temperature of the superconducting film. Thesensitive area of the bolometer consists of a number of narrow strips (with awidth of 1µm) connected in parallel to contact pads; these pads together witha sapphire substrate and a ground plate represent the microstrip transmissionline with an impedance of 50 Q.
UR  - https://doi.org/10.1117/12.2298488
DO  - 10.1117/12.2298488
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1652), last updated on Thu, 27 May 2021 12:16:41 -0500
ID  - Goltsman+Gershenzon1993
ER  -