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Author Lang, P. T.; Knott, W. J.; Leipold, I.; Renk, K. F.; Semenov, A. D.; Gol'tsman, G. N. url  doi
openurl 
  Title Generation and detection of tunable ultrashort infrared and far-infrared radiation pulses of high intensity Type Journal Article
  Year 1992 Publication Int. J. of Infrared and Millimeter Waves Abbreviated Journal Int. J. of Infrared and Millimeter Waves  
  Volume (up) 13 Issue 3 Pages 373-380  
  Keywords CO2 IR lasers, FIR  
  Abstract We report on generation and detection of intense pulsed radiation with frequency tunability in the infrared and far-infrared spectral regions. Infrared radiation is generated with a transversally electrically excited high pressure CO2 laser. A laser pulse of a total duration of about 300 ns consisted, due to self mode locking, of a series of single pulses, some with pulse durations of less than 450 ps and peak powers larger than 20 MW. Using these pulses for optical with durations less than 400 ps were obtained. For detection a new ultrafast superconducting detector was used.  
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  ISSN 0195-9271 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 1671  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Elantiev, A. I.; Karasik, B. S.; Potoskuev, S. E. url  openurl
  Title Intense electromagnetic radiation heating of electrons of a superconductor in the resistive state Type Journal Article
  Year 1988 Publication Sov. J. Low Temp. Phys. Abbreviated Journal Sov. J. Low Temp. Phys.  
  Volume (up) 14 Issue 7 Pages 414-420  
  Keywords HEB  
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  Notes Duplicated as 1697 Approved no  
  Call Number Serial 236  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Elant'ev, A. I.; Karasik, B. S.; Potoskuev, S. E. url  openurl
  Title Intense electromagnetic radiation heating of superconductor electrons in resistive state Type Journal Article
  Year 1988 Publication Fizika Nizkikh Temperatur Abbreviated Journal Fizika Nizkikh Temperatur  
  Volume (up) 14 Issue 7 Pages 753-763  
  Keywords Nb HEB  
  Abstract An experimental study is made of the effect of intense radiation in the millimeter and submillimeter ranges on thin and narrow Nb films in the resistive state. It is found that the excess resistance resulting from radiation and the dependence of its relaxation time on radiation intensity and transport current can be explained in terms of the effect of electron heating. Quantitative agreement is obtained between the experimental data and a homogeneous electron heating model.  
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  Notes Approved no  
  Call Number Serial 1697  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Mel'nikov, A. P. url  openurl
  Title Binding energy of a carrier with a neutral impurity atom in germanium and in silicon Type Journal Article
  Year 1971 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume (up) 14 Issue 5 Pages 185-186  
  Keywords Ge, Si, neutral impurity atom, binding energy  
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  Notes Approved no  
  Call Number Serial 1739  
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Author Gershenzon, E. M.; Gol'tsman, G. N. url  openurl
  Title Transitions of electrons between excited states of donors in germanium Type Journal Article
  Year 1971 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume (up) 14 Issue 2 Pages 63-65  
  Keywords Ge, donors, excited states  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1740  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Emtsev, V. V.; Mashovets, T. V.; Ptitsyna, N. G.; Ryvkin, S. M. url  openurl
  Title Role of impurities of groups III and V in the formation of defects following γ irradiation of germanium Type Journal Article
  Year 1971 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume (up) 14 Issue 6 Pages 241  
  Keywords Ge, gamma irradiation, defects, impurities  
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  Notes Approved no  
  Call Number Serial 1742  
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Author Mohan, N.; Minaeva, O.; Gol'tsman, G. N.; Nasr, M. B.; Saleh, B. E.; Sergienko, A. V.; Teich, M. C. url  doi
openurl 
  Title Photon-counting optical coherence-domain reflectometry using superconducting single-photon detectors Type Journal Article
  Year 2008 Publication Opt. Express Abbreviated Journal Opt. Express  
  Volume (up) 16 Issue 22 Pages 18118-18130  
  Keywords SSPD, SNSPD  
  Abstract We consider the use of single-photon counting detectors in coherence-domain imaging. Detectors operated in this mode exhibit reduced noise, which leads to increased sensitivity for weak light sources and weakly reflecting samples. In particular, we experimentally demonstrate the possibility of using superconducting single-photon detectors (SSPDs) for optical coherence-domain reflectometry (OCDR). These detectors are sensitive over the full spectral range that is useful for carrying out such imaging in biological samples. With counting rates as high as 100 MHz, SSPDs also offer a high rate of data acquisition if the light flux is sufficient.  
  Address Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA. nm82@bu.edu  
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  Series Volume Series Issue Edition  
  ISSN 1094-4087 ISBN Medium  
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  Notes PMID:18958090 Approved no  
  Call Number Serial 1407  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G. url  openurl
  Title Observation of the free-exciton spectrum at submillimeter wavelengths Type Journal Article
  Year 1972 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume (up) 16 Issue 4 Pages 161-162  
  Keywords Ge, energy spectrum, free excitons  
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  Notes Approved no  
  Call Number Serial 1736  
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Author Jiang, L.; Antipov, S. V.; Voronov, B. M.; Gol'tsman, G. N.; Zhang, W.; Li, N.; Lin, Z. H.; Yao, Q. J.; Miao, W.; Shi, S. C.; Svechnikov, S. I.; Vakhtomin, Y. B. url  doi
openurl 
  Title Characterization of the performance of a quasi-optical NbN superconducting HEB mixer Type Journal Article
  Year 2007 Publication IEEE Trans. Appl. Supercond. Abbreviated Journal IEEE Trans. Appl. Supercond.  
  Volume (up) 17 Issue 2 Pages 395-398  
  Keywords NbN HEB mixers, noise temperature  
  Abstract In this paper we focus mainly on the investigation of the performance of a quasi-optical (planar log-spiral antenna) phonon-cooled NbN superconducting hot electron bolometer (HEB) mixer, which is cryogenically cooled by a close-cycled 4-K cryocooler, at 500 and 850 GHz frequency bands. The mixer's noise performance, stability of IF output power, and local oscillator (LO) power requirement are characterized for three NbN superconducting HEB devices of different sizes. The transmission characteristics of Mylar and Zitex films with incidence waves of an elliptical polarization are also examined by measuring the mixer's noise temperature. The lowest receiver noise temperatures (with no corrections) of 750 and 1100 K are measured at 500 and 850 GHz, respectively. Experimental results also demonstrate that the bigger the HEB device is, the higher the stability of IF output power becomes.  
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  ISSN 1051-8223 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1429  
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Author Gousev, Y. P.; Gol'tsman, G. N.; Karasik, B. S.; Gershenzon, E. M.; Semenov, A. D.; Barowski, H. S.; Nebosis, R. S.; Renk, K. F. url  doi
openurl 
  Title Quasioptical superconducting hot electron bolometer for submillmeter waves Type Journal Article
  Year 1996 Publication Int. J. of Infrared and Millimeter Waves Abbreviated Journal Int. J. of Infrared and Millimeter Waves  
  Volume (up) 17 Issue 2 Pages 317-331  
  Keywords NbN HEB  
  Abstract We report on a superconducting hot electron bolometer coupled to radiation via a broadband antenna. The bolometer, a structured NbN film, was patterned on a thin dielectric membrane between terminals of a gold slotline antenna. We investigated the response to submillimeter radiation (wave-lengths ∼ 0.1 mm to 0.7 mm) in the fundamental Gaussian mode. We found that the directivity of the antenna was constant within a factor of 2.5 through the whole experimental range. The noise equivalent power of the bolometer at 119 µm was ∼ 3 · 10−13 W/Hz1/2; a time constant of ∼ 160 ps was estimated.  
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  Series Volume Series Issue Edition  
  ISSN 0195-9271 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1618  
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Author Gershenson, E. M.; Gol'tsman, G. N.; Elant'ev, A. I.; Kagane, M. L.; Multanovskii, V. V.; Ptitsina, N. G. url  openurl
  Title Use of submillimeter backward-wave tube spectroscopy in determination of the chemical nature and concentration of residual impurities in pure semiconductors Type Journal Article
  Year 1983 Publication Sov. Phys. Semicond. Abbreviated Journal Sov. Phys. Semicond.  
  Volume (up) 17 Issue 8 Pages 908-913  
  Keywords BWO spectroscopy, pure semiconductors, residual impurities  
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  Notes Применение субмиллиметровой ЛОВ спектроскопии для определения химической природы и концентрации примесей в чистых полупроводниках Approved no  
  Call Number Serial 1714  
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Author Nebosis, R. S.; Heusinger, M. A.; Semenov, A. D.; Lang, P. T.; Schatz, W.; Steinke, R.; Renk, K. F.; Gol'tsman, G. N.; Karasik, B. S.; Gershenzon, E. M. url  doi
openurl 
  Title Ultrafast photoresponse of an YBa2Cu3O7-δ film to far-infrared radiation pulses Type Journal Article
  Year 1993 Publication Opt. Lett. Abbreviated Journal Opt. Lett.  
  Volume (up) 18 Issue 2 Pages 96-97  
  Keywords YBCO HTS detectors  
  Abstract We report the observation of an ultrafast photoresponse of a high-T(c), film to far-infrared radiation pulses. The response of a sample, consisting of a current-carrying structured YBa(2)Cu(3)O(7-delta) film cooled to liquid-nitrogen temperature, was studied by use of ultrashort laser pulses from an optically pumped far-infrared laser in the frequency range from 0.7 to 7 THz. We found that the response time was limited by the time resolution, 120 ps, of our electronic registration equipment.  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0146-9592 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:19802049 Approved no  
  Call Number Serial 1660  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Kagane, M. L. url  openurl
  Title Observation of free carrier resonances in p-type germanium at submillimeter wavelengths Type Journal Article
  Year 1978 Publication Sov. Phys. Solid State Abbreviated Journal Sov. Phys. Solid State  
  Volume (up) 20 Issue 4 Pages 573-579  
  Keywords p-Ge, free carriers, resonances  
  Abstract The spectrum of hole resonances in pure p-Ge for submillimetre in quantizing magnetic fields has been studied and identified. Measurements of photoconductivity spectra of p-Ge were made in the wave range lambda = 2-0.3 mm at temp. of 4.2-15 deg K in magnetic fields H up to 40 Measurements at various frequencies showed that the position of a series of characteristic resonances depends on the frequency of the illumination. This is in line with theoretical conclusions about the effective mass of the carriers increasing with rise in the magnetic field as a result of the interaction of the edge of the valency band with the split spin-orbital interaction of the sub 7 exp + band and the conduction band. The relative intensity of the quantum resonance lines of the free holes depends on the excitation conditions.  
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  Notes Approved no  
  Call Number Serial 1721  
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Author Seleznev, V. A.; Tarkhov, M. A.; Voronov, B. M.; Milostnaya, I. I.; Lyakhno, V. Yu; Garbuz, A. S.; Mikhailov, M. Yu; Zhigalina, O. M.; Gol'tsman, G. N. doi  openurl
  Title Deposition and characterization of few-nanometers-thick superconducting Mo-Re films Type Journal Article
  Year 2008 Publication Supercond. Sci. Technol. Abbreviated Journal Supercond. Sci. Technol.  
  Volume (up) 21 Issue 11 Pages 115006 (1 to 6)  
  Keywords  
  Abstract We report on the fabrication and investigation of few-nanometers-thick superconducting molybdenum-rhenium (Mo-Re) films intended for use in nanowire single-photon superconducting detectors (SSPDs). Mo-Re films were deposited on sapphire substrates by DC magnetron sputtering of an Mo(60)-Re(40) alloy target in an atmosphere of argon. The films 2-10 nm thick had critical temperatures (Tc) from 5.6 to 9.7 K. HRTEM (high-resolution transmission electron microscopy) analysis showed that the films had a homogeneous structure. XPS (x-ray photoelectron spectroscopy) analysis showed the Mo to Re atom ratio to be 0.575/0.425, oxygen concentration to be 10%, and concentration of other elements to be 1%.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 723  
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Author Ozhegov, R. V.; Gorshkov, K. N.; Gol'tsman, G. N.; Kinev, N. V.; Koshelets, V. P. doi  openurl
  Title The stability of a terahertz receiver based on a superconducting integrated receiver Type Journal Article
  Year 2011 Publication Supercond. Sci. Technol. Abbreviated Journal Supercond. Sci. Technol.  
  Volume (up) 24 Issue 3 Pages 035003  
  Keywords SIS mixer, SIR, stability  
  Abstract We present the results of stability testing of a terahertz radiometer based on a superconducting receiver with a SIS tunnel junction as the mixer and a flux-flow oscillator as the local oscillator. In the continuum mode, the receiver with a noise temperature of 95 K at 510 GHz measured over the intermediate frequency (IF) passband of 4-8 GHz offered a noise equivalent temperature difference of 10 ± 1 mK at an integration time of 1 s. We offer a method to significantly increase the integration time without the use of complex measurement equipment. The receiver observed a strong signal over a final detection bandwidth of 4 GHz and offered an Allan time of 5 s.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 705  
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