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Author |
Chen, P. S. |
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Title |
Infrared properties of barium stars |
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Journal Article |
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Year |
2001 |
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Astron. Astrophys. |
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A&A |
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372 |
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1 |
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245-248 |
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0004-6361 |
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RPLAB @ s @ |
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415 |
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Hsiao, F.Z.; Lin, M.C.; Wang, C.; Lee, D.S.; Chen, J.R.; Hilbert, B.; Praud, A. |
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The liquid helium cryogenic system for the superconducting cavity in SRRC |
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Conference Article |
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Year |
2001 |
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Proc. Particle Accelerator Conference |
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2 |
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1604-1606 |
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A 500 MHz superconducting cavity will replace the current copper cavity and begin to operate in the beginning of the year 2003. A liquid helium cryogenic system provides the cavity at 4.5 K a cooling capacity of 255 W without LN2 pre-cooling and a liquefaction rate of 110 liter/hour with LN2 pre-cooling. A safety factor of 1.5 is used to estimate the heat load from the superconducting cavity and the heat loss from the transfer lines. With the LN2 pre-cooling, this cooling system provides a cooling capacity of up to 450 W to cool down the additional superconducting Landau cavity. The capacity of the system can be tuned using a frequency driver installed at the compressor station. The pressure fluctuations of the dewar and of the suction line are kept to the same stability requirement that of the cavity cryostat to minimize the influence in cavity operation. A shutdown period for maintenance of more than 8000 hours for the cryogenic system is expected without interfering with the continuous operation of the superconducting cavity. |
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RPLAB @ s @ |
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426 |
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Ganzevles, W. F. M.; Gao, J. R.; de Korte, P. A. J.; Klapwijk, T. M. |
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Title |
Direct response of microstrip line coupled Nb THz hot-electron bolometer mixers |
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Journal Article |
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Year |
2001 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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Volume |
79 |
Issue |
15 |
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2483-2485 |
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0003-6951 |
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311 |
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Author |
Kroug, M. |
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Title |
Hot electron bolometric mixers for a quasi-optical terahertz receiver |
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2001 |
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Ph.D. thesis |
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Chalmers University of Technology, Gothenburg, Sweden |
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310 |
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Van Rudd, J.; Johnson, Jon L.; Mittleman, Daniel M. |
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Title |
Cross-polarized angular emission patterns from lens-coupled terahertz antennas |
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Journal Article |
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Year |
2001 |
Publication |
J. Opt. Soc. Am. B |
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18 |
Issue |
10 |
Pages |
1524 |
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0740-3224 |
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475 |
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Author |
Shitov, S. V.; Levitchev, M.; Veretennikov, A. V.; Koshelets, V. P.; Prokopenko, G. V.; Filippenko, L. V.; Ermakov, A. B.; Shtanyuk, A. M.; Kohlstedt, H.; Ustinov, A. V. |
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Title |
Superconducting integrated receiver as 400-600 GHz tester for coolable devices |
Type |
Journal Article |
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Year |
2001 |
Publication |
IEEE Trans. Appl. Supercond. |
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Volume |
11 |
Issue |
1 |
Pages |
832-835 |
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RPLAB @ s @ sis_Shitov_2001 |
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313 |
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Author |
Jackson, B. D.; Baryshev, A. M.; de Lange, G.; Gao, J. R.; Shitov, S. V.; Iosad, N. N.; Klapwijk, T. M. |
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Title |
Low-noise 1 THz superconductor-insulator-superconductor mixer incorporating a NbTiN/SiO2/Al tuning circuit |
Type |
Journal Article |
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Year |
2001 |
Publication |
Appl. Phys. Lett. |
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Volume |
79 |
Issue |
3 |
Pages |
436 |
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RPLAB @ s @ sis_Jackson_2001 |
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314 |
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Author |
Karpov, A.; Miller, D.; Rice, F.; Zmuidzinas, J.; Stern, J. A.; Bumble, B.; LeDuc, H. G. |
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Title |
Low noise 1.2 THz SIS receiver |
Type |
Conference Article |
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Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
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Pages |
21-22 |
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San Diego, CA, USA |
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Jet Propulsion Laboratory, California Inst.it.u.t.e of Technology |
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RPLAB @ s @ sis_650K_at_1p13THz |
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316 |
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Author |
Shi, S. C.; Chin, C. C.; Wang, M. J.; Shan, W. L.; Zhang, W.; Noguchi, T. |
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Title |
Development of a 600–720 GHz SIS Mixer for the SMART |
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Conference Article |
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Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
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Pages |
215 |
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San Diego, CA, USA |
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Jet Propulsion Laboratory, California Inst.it.u.t.e of Technology |
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no |
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RPLAB @ s @ sis_145K_at_p618THz |
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317 |
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Author |
Merkel, H. F.; Khosropanah, P.; Sigfrid Yngvesson, K.; Cherednichenko, S.; Kroug, M.; Adam, A.; Kollberg, E. |
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Title |
An active zone small signal model for hot-electron bolometric mixers |
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Conference Article |
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Year |
2001 |
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Proc. 12th Int. Symp. Space Terahertz Technol. |
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55 |
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San Diego, CA, USA |
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RPLAB @ s @ losses_in_contacts_merkel |
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320 |
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Author |
Betz, A. L.; Boreiko, R. T.; Sivananthan, S.; Ashokan, R. |
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Title |
HgCdTe photoconductive mixers for 2-8 THz |
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Conference Article |
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2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
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92-101 |
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San Diego, CA, USA |
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Jet Propulsion Laboratory, California Inst.it.u.t.e of Technology |
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no |
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RPLAB @ s @ HgCdTe_2p5hf_to_k_at_10um |
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321 |
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Author |
Danny Wilms Floet |
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Title |
Hotspot mixing in THz niobium superconducting hot electron bolometer mixers |
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Manuscript |
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Year |
2001 |
Publication |
Delft University of Technology |
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Ph.D. thesis |
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Netherlands |
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no |
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932 |
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Author |
Gol’tsman, G. N.; Smirnov, K. V. |
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Title |
Electron-phonon interaction in a two-dimensional electron gas of semiconductor heterostructures at low temperatures |
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Journal Article |
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Year |
2001 |
Publication |
Jetp Lett. |
Abbreviated Journal |
Jetp Lett. |
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Volume |
74 |
Issue |
9 |
Pages |
474-479 |
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2DEG, AlGaAs/GaAs heterostructures |
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Abstract |
Theoretical and experimental works devoted to studying electron-phonon interaction in the two-dimensional electron gas of semiconductor heterostructures at low temperatures in the case of strong heating in an electric field under quasi-equilibrium conditions and in a quantizing magnetic field perpendicular to the 2D layer are considered. |
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0021-3640 |
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По итогам проектов российского фонда фундаментальных исследований. Проект РФФИ # 98-02-16897 Электрон-фононное взаимодействие в двумерном электронном газе полупроводниковых гетероструктур при низких температурах |
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1541 |
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Author |
Гольцман, Г. Н.; Смирнов, К. В. |
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По итогам проектов российского фонда фундаментальных исследований. Проект РФФИ # 98-02-16897 Электрон-фононное взаимодействие в двумерном электронном газе полупроводниковых гетероструктур при низких температурах |
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Year |
2001 |
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Письма в ЖЭТФ |
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Письма в ЖЭТФ |
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74 |
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9 |
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532-538 |
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2DEG, AlGaAs/GaAs heterostructures |
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Рассмотрены теоретические и экспериментальные работы, посвященные изучению электрон-фононного взаимодействия в двумерном электронном газе полупроводниковых гетероструктур при низких температурах в случае сильного разогрева в электрическом поле, в квазиравновесных условиях и в квантующем магнитном поле, перпендикулярном 2D слою. |
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Duplicated as 1541: “Electron-phonon interaction in a two-dimensional electron gas of semiconductor heterostructures at low temperatures” |
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Skalare, A.; McGrath, William R.; Echternach, P. M.; Leduc, H. G.; Siddiqi, I.; Verevkin, A.; Prober, D. E. |
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Title |
Aluminum hot-electron bolometer mixers at submillimeter wavelengths |
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Journal Article |
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Year |
2001 |
Publication |
IEEE Trans. Appl. Supercond. |
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11 |
Issue |
1 |
Pages |
641-644 |
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Al HEB mixer, contacts, interface, in situ, in-situ, Aluminium HEB mixer |
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Abstract |
Diffusion-cooled aluminum hot-electron bolometer (HEB) mixers are of interest for low-noise high resolution THz-frequency spectroscopy within astrophysics. Al HEB mixers offer operation with an order of magnitude less local oscillator power, higher intermediate frequency bandwidth and potentially lower noise than competing devices made from other materials. We report on mixer experiments at 618 GHz with devices fabricated from films with sheet resistances in the range from about 55 Ω down to about 9 Ω per square. Intermediate frequency bandwidths of up to 3 GHz were measured (1 μm long device), with absorbed local oscillator power levels of 0.5 to 6 nW and mixer conversion up to -21.5 dB. High input coupling efficiency implies that the electrons in the device are able to thermalize before escaping from the device. It was found that the long coherence length complicates mixer operations due to the proximity of the contact pads. Also, saturation at the IF frequency may be a concern for this type of device, and warrants further studies. |
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1051-8223 |
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no |
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ref919426b |
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1061 |
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