|
|
Korneev A, Semenov A, Vodolazov D, Gol’tsman GN, Sobolewski R. Physics and operation of superconducting single-photon devices. In: Wördenweber R, Moshchalkov V, Bending S, Tafuri F, editors. Superconductors at the Nanoscale. De Gruyter; 2017. p. 279–308.
|
|
|
|
Gershenzon E, Gershenzon ME, Gol'tsman GN, Semenov AD, Sergeev AV. Heating of quasiparticles in a superconducting film in the resistive state. JETP Lett. 1981;34(5):268–71.
|
|
|
|
Semenov AD, Gousev YP, Nebosis RS, Renk KF, Yagoubov P, Voronov BM, et al. Heterodyne detection of THz radiation with a superconducting hot‐electron bolometer mixer. Appl Phys Lett. 1996;69(2):260–2.
Abstract: We report on the use of a superconducting hot‐electron bolometer mixer for heterodyne detection of terahertz radiation. Radiation with a wavelength of 119 μm was coupled to the mixer, a NbN microbridge, by a hybrid quasioptical antenna consisting of an extended hyperhemispherical lens and a planar logarithmic spiral antenna. We found, at an intermediate frequency of 1.5 GHz, a system double side band noise temperature of ≊40 000 K and conversion losses of 25 dB. We also discuss the possibilities of further improvement of the mixer performance.
|
|
|
|
Richter H, Semenov A, Hubers H-W, Smirnov K, Gol’tsman G, Voronov B. Phonon cooled hot-electron bolometric mixer for 1-5 THz. In: Proc. 29th IRMMW / 12th THz.; 2004. p. 241–2.
Abstract: Heterodyne receivers for applications in astronomy and planetary research need quantum limited sensitivity. In instruments which are currently built for SOFIA and Herschel, superconducting hot electron bolometers (HEB) are used to achieve this goal at frequencies above 1.4 THz. In order to optimize the performance for this frequency of hot electron bolometer mixers with different in-plane dimensions and logarithmic-spiral feed antennas have been investigated. Their noise temperatures and beam patterns were measured. Above 3 THz the best performance was achieved with a superconducting bridge of 2.0/spl times/0.2 /spl mu/m/sup 2/ incorporated in a logarithmic spiral antenna. The DSB noise temperatures were 2700 K, 4700 and 6400 K at 3.1 THz, 4.3 THz and 5.2 THz, respectively. The results demonstrate that the NbN HEB is very well suited as a mixer for THz heterodyne receivers up to at least 5 THz.
|
|
|
|
Gershenzon EM, Gol'tsman GN, Karasik BS, Semenov AD. Measurement of the energy gap in the compound YBaCu3O9-δ on the basis of the IR absorption spectrum. JETP Lett. 1987;46(5):237–8.
Abstract: For the first time the long-wave infrared absorption spectrum has been measured by means of the bolometric effect and energy gap for high-temperature superconducting ceramics YBa/sub 2/Cu/sub 3/O/sub 9-delta/ has been determined from absorption threshold. 2delta/kT/sub c/ value is equal to 0.6.
|
|
