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| Author | Semenov, A. D.; Hübers, H.-W.; Gol’tsman, G. N.; Smirnov, K. | ||||
| Title | Superconducting quantum detector for astronomy and X-ray spectroscopy | Type | Conference Article | ||
| Year | 2002 | Publication | Proc. Int. Workshop on Supercond. Nano-Electronics Devices | Abbreviated Journal | Proc. Int. Workshop on Supercond. Nano-Electronics Devices |
| Volume | Issue | Pages | 201-210 | ||
| Keywords | NbN SSPD, SNSPD, SQD, superconducting quantum detectors, X-ray spectroscopy | ||||
| Abstract | We propose the novel concept of ultra-sensitive energy-dispersive superconducting quantum detectors prospective for applications in astronomy and X-ray spectroscopy. Depending on the superconducting material and operation conditions, such detector may allow realizing background limited noise equivalent power 10−21 W Hz−1/2 in the terahertz range when exposed to 4-K background radiation or counting of 6-keV photon with almost 10—4 energy resolution. Planar layout and relatively simple technology favor integration of elementary detectors into a detector array. | ||||
| Address | Naples, Italy | ||||
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| Publisher | Springer | Place of Publication | Boston, MA | Editor | Pekola, J.; Ruggiero, B.; Silvestrini, P. |
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| ISSN | ISBN | 978-1-4615-0737-6 | Medium | ||
| Area | Expedition | Conference | International Workshop on Superconducting Nano-Electronics Devices, May 28-June 1, 2001 | ||
| Notes | Approved | no | |||
Call Number  |
semenov2002superconducting | Serial | 1525 | ||
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| Author | Julia Toussaint, Roman Grüner, Marco Schubert, Torsten May, Hans-Georg Meyer, Benjamin Dietzek, Jürgen Popp, Matthias Hofherr, Matthias Arndt, Dagmar Henrich, Konstantin Il'in, and Michael Siegel | ||||
| Title | Superconducting single-photon counting system for optical experiments requiring time-resolution in the picosecond range | Type | Journal Article | ||
| Year | 2012 | Publication | Abbreviated Journal | AIP REVIEW OF SCIENTIFIC INSTRUMENTS | |
| Volume | 83 | Issue | Pages | ||
| Keywords | SSPD, picosecond, time-resolution | ||||
| Abstract | We have developed a cryogenic measurement system for single-photon counting, which can be used in optical experiments requiring high time resolution in the picosecond range. The system utilizes niobium nitride superconducting nanowire single-photon detectors which are integrated in a timecorrelated single-photon counting (TCSPC) setup. In this work, we describe details of the mechanical design, the electrical setup, and the cryogenic optical components. The performance of the complete system in TCSPC mode is tentatively benchmarked using 140 fs long laser pulses at a repetition frequency of 75MHz. Due to the high temporal stability of these pulses, the measured time resolution of 35 ps (FWHM) is limited by the timing jitter of the measurement system. The result was crosschecked in a Coherent Anti-stokes Raman Scattering (CARS) setup, where scattered pulses from a β-barium borate crystal have been detected with the same time resolution. |
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ seleznev @ | Serial | 885 | ||
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| Author | Mair, U.; Suttywong, N.; Hübers, H.-W.; Semenov, A. D.; Richter, H.; Wagner, G.; Birk, M. | ||||
| Title | Development of 1.8 THz receiver for the TELIS instrument | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. 16th Int. Symp. Space Terahertz Technol. | Abbreviated Journal | |
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| Publisher | Place of Publication | Göteborg, Sweden | Editor | ||
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ s @ qo_TELIS_1p8_THz | Serial | 364 | ||
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| Author | Kawamura, Jonathan; Blundell, Raymond; Tong, C.-Y. Edward; Papa, D. Cosmo; Hunter, Todd R.; Paine, Scot.t. N.; Patt, Ferdinand; Gol'tsman, Gregory; Cherednichenko, Sergei; Voronov, Boris; Gershenzon, Eugene | ||||
| Title | Superconductive hot-electron bolometer mixer receiver for 800 GHz operation | Type | Miscellaneous | ||
| Year | 2000 | Publication | IEEE Trans. Microwave Theory and Techniques | Abbreviated Journal | IEEE Trans. Microwave Theory and Techniques |
| Volume | 48 | Issue | 4 | Pages | 683-689 |
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ s @ Kawamura_superconductivehot-electron | Serial | 424 | ||
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| Author | Li, Mo; Pernice, W. H. P.; Xiong, C.; Baehr-Jones, T.; Hochberg, M.; Tang, H. X. | ||||
| Title | Harnessing optical forces in integrated photonic circuits | Type | Journal Article | ||
| Year | 2008 | Publication | Nature | Abbreviated Journal | Nature |
| Volume | 456 | Issue | 7221 | Pages | 480-484 |
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| ISSN | 0028-0836 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ s @ | Serial | 425 | ||
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| Author | Hansen, Lene; Jørgensen, H.E.; Nørgaard-Nielsen, Hans Ulrik; Pedersen, Kenneth; Goudfrooij, P.; Linden-Vornle, M.J.D. | ||||
| Title | ISO far-infrared observations of rich galaxy clusters III. Abell 2029, Abell 2052, Abell 2142 | Type | Journal Article | ||
| Year | 2000 | Publication | Astron. Astrophys. | Abbreviated Journal | A&A |
| Volume | 362 | Issue | 1 | Pages | 133-137 |
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| Abstract | A sample of five rich galaxy clusters has been mapped by ISO at 60 μm, 100 μm, 135 μm, and 200 μm using the PHT-C camera. In previous papers Abell 2670 and Sersic 159-03 were discussed. Here we present the results for Abell 2029, Abell 2052, and Abell 2142. The conclusion of the survey is that the relatively small fields (approximate to 60 square are minutes) are structured with filaments or superpositions of point sources. In some cases point sources (approximate to 0.1 Jy) can be identified with cluster galaxies. An attempt to demonstrate infrared emission from dust in the cooling flows (due to star formation) was inconclusive. | ||||
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ s @ | Serial | 456 | ||
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| Author | Gershenzon, E. M.; Il'in, V. A.; Litvak-Gorskaya, L. B.; Filonovich, S. R. | ||||
| Title | Character of submillimeter photoconductivity in n-lnSb | Type | Journal Article | ||
| Year | 1979 | Publication | Sov. Phys. JETP | Abbreviated Journal | Sov. Phys. JETP |
| Volume | 49 | Issue | 1 | Pages | 121-128 |
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| Abstract | A comprehensive investigation was made of the submillimeter photoconductivity of n -1nSb in the range of wavelengths L = 0.6-8 mm, magnetic fields H = 0-30 kOe, electric fields E = 0.01-0.5 V/cm, and temperatures T = 1.3-30 K. The kinetics of the photoconductivity processes as a function of T, E; and H is investigated. It is shown that impurity photoconductivity does exist for any degree of compensation of extremely purified n-InSb. Particular attention is paid to the hopping photoconductivity realized in strongly compensated n-1nSb (K > 0.8). | ||||
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ phisix @ | Serial | 985 | ||
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| Author | Ryabchun, Sergey; Tong, Cheuk-Yu Edward; Blundell, Raymond; Gol'tsman, Gregory | ||||
| Title | Stabilization scheme for hot-electron bolometer receivers using microwave radiation | Type | Journal Article | ||
| Year | 2009 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
| Volume | 19 | Issue | 1 | Pages | 14-19 |
| Keywords | HEB, mixer, Allan variance, stabilization, radiometer equation | ||||
| Abstract | We present the results of a stabilization scheme for terahertz receivers based on NbN hot-electron bolometer (HEB) mixers that uses microwave radiation with a frequency much lower than the gap frequency of NbN to compensate for mixer current fluctuations. A feedback control loop, which actively controls the power level of the injected microwave radiation, has successfully been implemented to stabilize the operating point of the HEB mixer. This allows us to increase the receiver Allan time to 10 s and also improve the temperature resolution of the receiver by about 30% in the total power mode of operation. | ||||
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| ISSN | 1051-8223 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ lobanovyury @ | Serial | 559 | ||
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| Author | Kawamura, J.; Blundell, R.; Tong, C.-Y. E.; Papa, D. C.; Hunter, T. R.; Paine, S. N.; Patt, F.; Gol'tsman, G.; Cherednichenko, S.; Voronov, B.; Gershenzon, E. | ||||
| Title | Superconductive hot-electron-bolometer mixer receiver for 800-GHz operation | Type | Journal Article | ||
| Year | 2000 | Publication | IEEE Trans. Microw. Theory Techn. | Abbreviated Journal | IEEE Trans. Microw. Theory Techn. |
| Volume | 48 | Issue | 4 | Pages | 683-689 |
| Keywords | NbN HEB mixers, LO power, local oscillator power, saturation, linearity, dynamic range | ||||
| Abstract | In this paper, we describe a superconductive hot-electron-bolometer mixer receiver designed to operate in the partially transmissive 350-μm atmospheric window. The receiver employs an NbN thin-film microbridge as the mixer element, in which the main cooling mechanism of the hot electrons is through electron-phonon interaction. At a local-oscillator frequency of 808 GHz, the measured double-sideband receiver noise temperature is TRX=970 K, across a 1-GHz intermediate-frequency bandwidth centered at 1.8 GHz. We have measured the linearity of the receiver and the amount of local-oscillator power incident on the mixer for optimal operation, which is PLO≈1 μW. This receiver was used in making observations as a facility instrument at the Heinrich Hertz Telescope, Mt. Graham, AZ, during the 1998-1999 winter observing season. | ||||
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| ISSN | 0018-9480 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number |
RPLAB @ lobanovyury @ | Serial | 573 | ||
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| Author | Tong, C.-Y.E.; Meledin, D.V.; Marrone, D.P.; Paine, S.N.; Gibson, H.; Blundell, R. | ||||
| Title | Near field vector beam measurements at 1 THz | Type | Journal Article | ||
| Year | 2003 | Publication | IEEE Microw. Compon. Lett. | Abbreviated Journal | |
| Volume | 13 | Issue | 6 | Pages | 235-237 |
| Keywords | HEB, mixer, waveguide, LO power, local oscillator power, saturation effect, dynamic range | ||||
| Abstract | We have performed near-field vector beam measurements at 1.03 THz to characterize and align the receiver optics of a superconducting receiver. The signal source is a harmonic generator mounted on an X-Y translation stage. We model the measured two-dimensional complex beam pattern by a fundamental Gaussian mode, from which we derive the position of the beam center, the beam radius and the direction of propagation. By performing scans in the planes separated by 400 mm, we have confirmed that our beam pattern measurements are highly reliable. | ||||
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| ISSN | 1531-1309 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number |
RPLAB @ lobanovyury @ | Serial | 574 | ||
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