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| Author | Rasulova, G. K.; Brunkov, P. N.; Pentin, I. V.; Egorov, A. Y.; Knyazev, D. A.; Andrianov, A. V.; Zakhar’in, A. O.; Konnikov, S. G.; Gol’tsman, G. N. | ||||
| Title | A weakly coupled semiconductor superlattice as a potential for a radio frequency modulated terahertz light emitter | Type | Journal Article | ||
| Year | 2012 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 100 | Issue | 13 | Pages | 131104 (1 to 4) |
| Keywords | semiconductor superlattice | ||||
| Abstract | The bolometer response to THz radiation from a weakly coupled GaAs/AlGaAs superlattice biased in the self-oscillations regime has been observed. The bolometer signal is modulated with the frequency equal to the fundamental frequency of superlattice self-oscillations. The frequency spectrum of the bolometer signal contains higher harmonics whose frequency is a multiple of fundamental frequency of self-oscillations. This work was supported by State Contracts Nos. 16.740.11.0044 and 16.552.11.7002 of Ministry of Education and Science of the Russian Federation. Structural characterization was made on the equipment of the Joint Research Centre «Material science and characterization in advanced technology» (Ioffe Institute, St. Petersburg, Russia). |
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| ISSN | 0003-6951 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
Notes  |
Approved | no | |||
| Call Number | Serial | 1379 | |||
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| Author | Pentin, I. V.; Smirnov, A. V.; Ryabchun, S. A.; Gol’tsman, G. N.; Vaks, V. L.; Pripolzin, S. I.; Paveliev, D. G. | ||||
| Title | Heterodyne source of THz range based on semiconductor superlattice multiplier | Type | Conference Article | ||
| Year | 2011 | Publication | IRMMW-THz | Abbreviated Journal | IRMMW-THz |
| Volume | Issue | Pages | 1-2 | ||
| Keywords | NbN HEB mixer, superlattice | ||||
| Abstract | We present the results of our studies of the possibility of developing a heterodyne receiver incorporating a hot-electron bolometer mixer as the detector and a semiconductor superlattice multiplier driven by a reference synthesizer as the local oscillator. We observe that such a local oscillator offers enough power in the terahertz range to pump the HEB into the operating state. | ||||
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| Notes |
Approved | no | |||
| Call Number | 6105209 | Serial | 1384 | ||
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| Author | Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. | ||||
| Title | Erratum: “Single photon experiments at telecom wavelengths using nanowire superconducting detectors” [Appl. Phys. Lett. 91, 031106 (2007)] | Type | Journal Article | ||
| Year | 2010 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 96 | Issue | 8 | Pages | 089901 |
| Keywords | SSPD, SNSPD, erratum | ||||
| Abstract | A calculation error was made in the original publication of this letter. The error was in the calculation of the noise equivalent power (NEP) values for the avalanche photodiode detector (APD) and the superconducting single photon detector (SSPD), the incorrect values were plotted on the right axis in Fig. 1(b). The correct NEP values were calculated with the same equation reported in the original letter and the revised Fig. 1(b) is shown below. The other conclusions of the paper remain unaltered. | ||||
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| ISSN | 0003-6951 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes |
Approved | no | |||
| Call Number | Serial | 1395 | |||
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| Author | Tikhonov, V. V.; Polyakova, O. N.; Gol’tsman, G. N.; Dzardanov, A. L.; Boyarskiy, D. A. | ||||
| Title | Determination of dielectric properties of ore minerals in the microwave band | Type | Journal Article | ||
| Year | 2008 | Publication | Radiophys. Quant. Electron. | Abbreviated Journal | Radiophys. Quant. Electron. |
| Volume | 51 | Issue | 12 | Pages | 966-974 |
| Keywords | ore complex permittivity, chalcopyrite, magnetite, sphalerite, labradorite | ||||
| Abstract | We consider a method for determining the complex dielectric permittivity of ore and nonmetal minerals in the microwave band of electromagnetic radiation. The results of measuring the reflectivity and transmittivity of chalcopyrite, magnetite, sphalerite, and labradorite samples in the frequency range 77–300 GHz are presented. A method for calculation of the complex dielectric permittivity of minerals on the basis of the obtained experimental data is proposed. The approximation formulas for calculation of the complex dielectric permittivity of the studied minerals are given. | ||||
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| ISSN | 0033-8443 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes |
Approved | no | |||
| Call Number | Serial | 1404 | |||
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| Author | Polyakova, O. N.; Tikhonov, V. V.; Dzardanov, A. L.; Boyarskii, D. A.; Gol’tsman, G. N. | ||||
| Title | Dielectric characteristics of ore minerals in a 10–40 GHz frequency range | Type | Journal Article | ||
| Year | 2008 | Publication | Tech. Phys. Lett. | Abbreviated Journal | Tech. Phys. Lett. |
| Volume | 34 | Issue | 11 | Pages | 967-970 |
| Keywords | ore minerals, complex permittivity, sphalerite, magnetite, labradorite | ||||
| Abstract | A new approach to investigation of the complex dielectric permittivity of both nonmetallic and ore minerals in the microwave frequency range is proposed. Using this approach, data on the complex permittivity of sphalerite, magnetite, and labradorite in a 10–40 GHz frequency range have been obtained for the first time. A method is proposed for calculating the complex permittivity from experimentally measured frequency dependences of the reflection and transmission coefficients of a plane-parallel plate of a given mineral. Approximate expressions that can be used for calculations of the complex refractive index and permittivity of minerals are presented. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1063-7850 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes |
Approved | no | |||
| Call Number | Serial | 1406 | |||
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| Author | Zhang, W.; Li, N.; Jiang, L.; Ren, Y.; Yao, Q.-J.; Lin, Z.-H.; Shi, S.-C.; Voronov, B. M.; Gol’tsman, G. N. | ||||
| Title | Dependence of noise temperature of quasi-optical superconducting hot-electron bolometer mixers on bath temperature and optical-axis displacement | Type | Conference Article | ||
| Year | 2008 | Publication | Proc. SPIE | Abbreviated Journal | Proc. SPIE |
| Volume | 6840 | Issue | Pages | 684007 (1 to 8) | |
| Keywords | NbN HEB mixers, noise temperature, LO power | ||||
| Abstract | It is known that the increase of bath temperature results in the decrease of critical current of superconducting hot-electron bolometer (HEB) mixers owing to the depression of superconductivity, thus leading to the degradation of the mixer’s sensitivity. Here we report our study on the effect of bath temperature on the heterodyne mixing performance of quasi-optical superconducting NbN HEB mixers incorporated with a two-arm log-spiral antenna. The correlation between the bath temperature, critical current, LO power requirement and noise temperature is investigated at 0.5 THz. Furthermore, the heterodyne mixing performance of quasi-optical superconducting NbN HEB mixers is examined while there is an optical-axis displacement between the center of the extended hemispherical silicon lens and the superconducting NbN HEB device, which is placed on the back of the lens. Detailed experimental results and analysis are presented. | ||||
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| Publisher | Spie | Place of Publication | Editor | Zhang, C.; Zhang, X.-C. | |
| Language | Summary Language | Original Title | |||
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| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Terahertz Photonics | ||
| Notes |
Approved | no | |||
| Call Number | Serial | 1415 | |||
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| Author | Cherednichenko, S.; Drakinskiy, V.; Baubert, J.; Lecomte, B.; Dauplay, F.; Krieg, J.-M.; Delorme, Y.; Feret, A.; Hübers, H.-W.; Semenov, A. D.; Gol’tsman, G. N. | ||||
| Title | 2.5 THz multipixel heterodyne receiver based on NbN HEB mixers | Type | Abstract | ||
| Year | 2007 | Publication | Proc. 18th Int. Symp. Space Terahertz Technol. | Abbreviated Journal | Proc. 18th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 112 | ||
| Keywords | NbN HEB mixers | ||||
| Abstract | A 16 pixel heterodyne receiver for 2.5 THz has been developed based on NbN superconducting hot-electron bolometer (HEB) mixers. The receiver uses a quasioptical RF coupling approach where HEB mixers are integrated into double dipole antennas on 1.5μm thick Si3N4 / SiO2 membranes. Spherical mirrors (one per pixel) and backshort distance from the antenna have been used to design the output mixer beam profile. The camera design allows all 16 pixel IF readout in parallel. Measurements of the mixers sensitivity and the input RF band are presented, and compared against calculations. | ||||
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| Notes |
Approved | no | |||
| Call Number | Serial | 1419 | |||
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| Author | Gol’tsman, G. N. | ||||
| Title | The “Millimetron” project, a future space telescope mission | Type | Abstract | ||
| Year | 2007 | Publication | Proc. 18th Int. Symp. Space Terahertz Technol. | Abbreviated Journal | Proc. 18th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 255 | ||
| Keywords | Millimetron space observatory, VLBI | ||||
| Abstract | The goal of the Millimetron project is to develop a space observatory operating in the millimeter, sub-millimeter and infrared wavelength ranges using a 12-m actively cooled telescope in a single-dish mode and as an interferometer with the space-ground and space-space baselines (the later after the launch of the second identical space telescope). The Millimetron’s main reflector and other optics will be cooled down to 4K thus enabling astronomical observations with super high sensitivity in MM and subMM (down to nanoJansky level). Heterodyne observations in an interferometer mode at frequencies 0.1-1 THz will provide super high angular resolution. The main instruments, planned to be installed are wide-range imaging arrays, radiometers with spectrometers and polarimeters, VLBI heterodyne receivers, and Mikelson type interferometer devices. Wide-range MM and subMM imaging arrays and spectrometers will be based on a superconducting hot electron direct detectors with Andreev mirrors operating at 0.1 K. Such detectors are the best candidates to reach the noise equivalent power level of 10 -19 -10 -20 W/√Hz. Heterodyne receivers will be both SIS based superconducting integrated receiver with flux-flow oscillator as LO (0.1-0.9 THz range) and HEB based receivers using multiplied Gunn oscillator as LO for 1-2 THz range and quantum cascade lasers as LO for 2-5 THz range. For observations in middle IR region there will be installed large arrays of superconducting single photon detectors, providing imaging with very high dynamic range and ultimate sensitivity. | ||||
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| Notes |
Approved | no | |||
| Call Number | Serial | 1422 | |||
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| Author | Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. | ||||
| Title | Single-photonics at telecom wavelengths using nanowire superconducting single photon detectors | Type | Conference Article | ||
| Year | 2007 | Publication | CLEO/QELS | Abbreviated Journal | CLEO/QELS |
| Volume | Issue | Pages | QTuF6 (1 to 2) | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | Novel single-photon detectors based on NbN superconducting nanostructures promise orders-of- magnitude improvement over InGaAs APDs. We demonstrate this improved performance for the first time by measuring the g(2)(τ) on single photon states produced by a quantum dot at telecom wavelength. | ||||
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| Publisher | Optical Society of America | Place of Publication | Editor | ||
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| Area | Expedition | Conference | Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies | ||
| Notes |
Approved | no | |||
| Call Number | Zinoni:07 | Serial | 1432 | ||
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| Author | Kerman, A. J.; Dauler, E. A.; Yang, J. K. W.; Rosfjord, K. M.; Anant, V.; Berggren, K. K.; Gol’tsman, G. N.; Voronov, B. M. | ||||
| Title | Constriction-limited detection efficiency of superconducting nanowire single-photon detectors | Type | Journal Article | ||
| Year | 2007 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 90 | Issue | 10 | Pages | 101110 (1 to 3) |
| Keywords | SSPD, SNSPD | ||||
| Abstract | We investigate the source of the large variations in the observed detection efficiencies of superconducting nanowire single-photon detectors between many nominally identical devices. Through both electrical and optical measurements, we infer that these variations arise from “constrictions:” highly localized regions of the nanowires where the effective cross-sectional area for superconducting current is reduced. These constrictions limit the bias-current density to well below its critical value over the remainder of the wire, and thus prevent the detection efficiency from reaching the high values that occur in these devices when they are biased near the critical current density. This work is sponsored by the United States Air Force under Contract No. FA8721-05-C-0002. |
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| ISSN | 0003-6951 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes |
Approved | no | |||
| Call Number | Serial | 1433 | |||
| Permanent link to this record | |||||