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Author Anfertev, V.; Vaks, V.; Revin, L.; Pentin, I.; Tretyakov, I.; Goltsman, G.; Vinogradov, E. A.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. url  doi
openurl 
  Title High resolution THz gas spectrometer based on semiconductor and superconductor devices Type Conference Article
  Year 2017 Publication EPJ Web Conf. Abbreviated Journal (down) EPJ Web Conf.  
  Volume 132 Issue Pages 02001 (1 to 2)  
  Keywords NbN HEB mixers, detectors, THz spectroscopy  
  Abstract The high resolution THz gas spectrometer consists of a synthesizer based on Gunn generator with a semiconductor superlattice frequency multiplier as a radiation source, and an NbN hot electron bolometer in a direct detection mode as a THz radiation receiver was presented. The possibility of application of a quantum cascade laser as a local oscillator for a heterodyne receiver which is based on an NbN hot electron bolometer mixer is shown. The ways for further developing of the THz spectroscopy were outlined.  
  Address  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2100-014X ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1328  
Permanent link to this record
 
 
Author Zhang, Wen; Li, Ning; Jiang, Ling; Miao, Wei; Lin, Zhen-Hui; Yao, Qi-Jun; Shi, Sheng-Cai; Chen, Jian; Wu, Pei-Heng; Svechnikov, S. I.; Vachtomin, Y. B.; Antipov, S. V.; Voronov, B. M.; Gol'tsman, G. N. url  doi
openurl 
  Title Noise behaviour of a THz superconducting hot-electron bolometer mixer Type Journal Article
  Year 2007 Publication Chinese Phys. Lett. Abbreviated Journal (down) Chinese Phys. Lett.  
  Volume 24 Issue 6 Pages 1778-1781  
  Keywords NbN HEB mixers  
  Abstract A quasi-optical superconducting NbN hot-electron bolometer (HEB) mixer is measured in the frequency range of 0.5–2.5 THz for understanding of the frequency dependence of noise temperature of THz coherent detectors. It has been found that noise temperature increasing with frequency is mainly due to the coupling loss between the quasi-optical planar antenna and the superconducting HEB bridge when taking account of non-uniform distribution of high-frequency current. With the coupling loss corrected, the superconducting HEB mixer demonstrates a noise temperature nearly independent of frequency.  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0256-307X ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1430  
Permanent link to this record
 
 
Author Maslennikov, S. url  openurl
  Title RF heating efficiency of the terahertz superconducting hot-electron bolometer Type Journal Article
  Year 2014 Publication arXiv Abbreviated Journal (down) arXiv  
  Volume 1404.5276 Issue Pages 1-4  
  Keywords superconducting hot-electron bolometer mixer, HEB, NbN, distributed model, HEB model, HEB mixer model, heat balance equa-tions, conversion gain, RF heating efficiency, noise temperature, simulation, Euler method  
  Abstract We report results of the numerical solution by the Euler method of the system of heat balance equations written in recurrent form for the superconducting hot-electron bolometer (HEB) embedded in an electrical circuit. By taking into account the dependence of the HEB resistance on the transport current we have been able to calculate rigorously the RF heating efficiency, absorbed local oscillator (LO) power and conversion gain of the HEB mixer. We show that the calculated conversion gai nis in excellent agreement with the experimental results, and that the substitution of the calculated RF heating efficiency and absorbed LO power into the expressions for the conversion gain and noise temperature given by the analytical small-signal model of the HEB yields excellent agreement with the corresponding measured values  
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  Notes Approved no  
  Call Number RPLAB @ atomics90 @ Serial 954  
Permanent link to this record
 
 
Author Gol’tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title Phonon-cooled hot-electron bolometric mixer: overview of recent results Type Journal Article
  Year 1999 Publication Appl. Supercond. Abbreviated Journal (down) Appl. Supercond.  
  Volume 6 Issue 10-12 Pages 649-655  
  Keywords NbN HEB mixers  
  Abstract The paper presents an overview of recent results for NbN phonon-cooled hot electron bolometric (HEB) mixers. The noise temperature of the receivers based on both quasioptical and waveguide versions of HEB mixer has crossed the level of 1 K·GHz−1 at 430 GHz (410 K) and 600–650 GHz (480 K) and is close to this level at 820 GHz (1100 K) and 900 GHz (980 K). The gain bandwidth measured for quasioptical HEB mixer at 620 GHz reached 4 GHz and the noise temperature bandwidth was almost 8 GHz. Local oscillator power requirements are about 1 μW for mixers made by photolithography and are about 100 nW for mixers made by e-beam lithography. The studies in terahertz receivers based on HEB superconducting mixers now present a dynamic, rapidly developing field.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0964-1807 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1564  
Permanent link to this record
 
 
Author Prober, D. E. openurl 
  Title Superconducting terahertz mixer using a transition-edge microbolometer Type Journal Article
  Year 1993 Publication Appl. Phys. Lett. Abbreviated Journal (down) Appl. Phys. Lett.  
  Volume 62 Issue 17 Pages 2119-2121  
  Keywords HEB mixer, NbN, TES  
  Abstract  
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  Notes Recommended by Klapwijk Approved no  
  Call Number Serial 244  
Permanent link to this record
 
 
Author Lindgren, M.; Zorin, M. A.; Trifonov, V.; Danerud, M.; Winkler, D.; Karasik, B. S.; Gol'tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title Optical mixing in a patterned YBa2Cu3O7-δ thin film Type Journal Article
  Year 1994 Publication Appl. Phys. Lett. Abbreviated Journal (down) Appl. Phys. Lett.  
  Volume 65 Issue 26 Pages 3398-3400  
  Keywords YBCO HTS HEB mixer, bandwidth  
  Abstract Mixing of 1.56 µm infrared radiation from two lasers in a high quality YBa2Cu3O7-δ thin film, patterned to parallel strips, was demonstrated. A mixer bandwidth of 18 GHz, limited by the measurement system, was obtained. A model based on nonequilibrium electron heating gives a good fit to the data and predicts an intrinsic mixer bandwidth in excess of 100 GHz, operating in the whole infrared spectrum. Reduction of bolometric effects and ways to decrease the conversion loss of the mixer is discussed. The minimum conversion loss is expected to be ~10 dB.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-6951 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 251  
Permanent link to this record
 
 
Author Karasik, B. S.; Elantiev, A. I. url  doi
openurl 
  Title Noise temperature limit of a superconducting hot-electron bolometer mixer Type Journal Article
  Year 1996 Publication Applied Physics Letters Abbreviated Journal (down) Appl. Phys. Lett.  
  Volume 68 Issue 6 Pages 853-855  
  Keywords HEB mixer noise temperature, Johnson noise, thermal fluctuation noise, noise bandwidth  
  Abstract  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-6951 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 260  
Permanent link to this record
 
 
Author Karasik, B. S.; Il'in, K. S.; Pechen, E. V.; Krasnosvobodtsev, S. I. url  doi
openurl 
  Title Diffusion cooling mechanism in a hot-electron NbC microbolometer mixer Type Journal Article
  Year 1996 Publication Applied Physics Letters Abbreviated Journal (down) Appl. Phys. Lett.  
  Volume 68 Issue 16 Pages 2285-2287  
  Keywords HEB mixer, diffusion cooling channel, diffusion channel  
  Abstract  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-6951 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 262  
Permanent link to this record
 
 
Author Ekstörm, H.; Kollberg, E.; Yagoubov, P.; Gol'tsman, G.; Gershenzon, E.; Yngvesson, S. url  doi
openurl 
  Title Gain and noise bandwidth of NbN hot-electron bolometric mixers Type Journal Article
  Year 1997 Publication Appl. Phys. Lett. Abbreviated Journal (down) Appl. Phys. Lett.  
  Volume 70 Issue 24 Pages 3296-3298  
  Keywords NbN HEB mixers, conversion loss, conversion gain, U-factor technique  
  Abstract We have measured the noise performance and gain bandwidth of 35 Å thin NbN hot-electron mixers integrated with spiral antennas on silicon substrate lenses at 620 GHz. The best double-sideband receiver noise temperature is less than 1300 K with a 3 dB bandwidth of ≈5 GHz. The gain bandwidth is 3.2 GHz. The mixer output noise dominated by thermal fluctuations is 50 K, and the intrinsic conversion gain is about −12 dB. Without mismatch losses and excluding the loss from the beamsplitter, we expect to achieve a receiver noise temperature of less than 700 K.  
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  Notes Approved no  
  Call Number Serial 279  
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Author Khosropanah, P.; Gao, J. R.; Laauwen, W. M.; Hajenius, M; Klapwijk, T. M. openurl 
  Title Low noise NbN hot electron bolometer mixer at 4.3 THz Type Journal Article
  Year 2007 Publication Appl. Phys. Lett. Abbreviated Journal (down) Appl. Phys. Lett.  
  Volume 91 Issue Pages 221111 (1 to 3)  
  Keywords NbN HEB mixers, NbN, contacts cleaning  
  Abstract We have studied the sensitivity of a superconducting NbN hot electron bolometer mixer integrated with a spiral antenna at 4.3 THz. Using hot/cold blackbody loads and a beam splitter all in vacuum, we measured a double sideband receiver noise temperature of 1300 K at the optimum local oscillator (LO) power of 330 nW, which is about 12 times the quantum noise (hnu/2kB). Our result indicates that there is no sign of degradation of the mixing process at the superterahertz frequencies. Moreover, a measurement method is introduced which allows us for an accurate determination of the sensitivity despite LO power fluctuations.  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 584  
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