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Author Käufl, H. U.; Rothermal, H.; Drapatz, S.
Title Investigation of the Martian atmosphere by 10 micron heterodyne spectroscopy Type Journal Article
Year 1984 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 136 Issue Pages 319-325
Keywords (up) astronomical spectroscopy, atmospheric composition, infrared astronomy, mars atmosphere, spectral line width, carbon dioxide concentration, nonequilibrium thermodynamics, optical heterodyning, planetary radiation, mars, atmosphere, spectroscopy, atmosphere, carbon dioxide, altitude, kinetics, rotation, thermal properties, temperature, emissions, intensity, models, data, spectra
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Call Number Serial 449
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Author Rothermel, H.; Käufl, H. U.; Yu, Y.
Title A heterodyne spectrometer for astronomical measurements at 10 micrometers Type Journal Article
Year 1983 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 126 Issue Pages 387-392
Keywords (up) astronomical spectroscopy, infrared astronomy, infrared spectrometers, optical heterodyning, infrared telescopes, laser spectrometers, mars (planet), venus (planet)
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Call Number Serial 453
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Author Rothermel, H.; Käufl, H. U.; Schrey, U.; Drapatz, S.
Title Thermal structure of the Martian mesosphere Type Journal Article
Year 1988 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 196 Issue Pages 296-300
Keywords (up) atmospheric temperature, carbon dioxide, infrared spectroscopy, mars atmosphere, mesosphere, emission spectra, line spectra, spatial resolution, mars, atmosphere, mesosphere, structure, thermal properties, spectra, spectroscopy, earth-based observations, temperature, patterns, infrared, polar regions, wavelengths, equipment, procedure, carbon dioxide, emissions
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Call Number Rothermel1988 Serial 450
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Author Johnson, M. A.; Betz, A. L.; McLaren, R. A.; Townes, C. H.; Sutton, E. C.
Title Nonthermal 10 micron CO2 emission lines in the atmospheres of Mars and Venus Type Journal Article
Year 1976 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 208 Issue Pages 145
Keywords (up) carbon dioxide, emission spectra, infrared spectra, mars atmosphere, nonthermal radiation, optical heterodyning, planetary radiation, venus atmosphere, absorption spectra, energy transfer, line spectra, molecular absorption, molecular collisions, near infrared radiation, solar flux
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Call Number ref1976ApJ...208L.145J Serial 451
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Author Betz, A. L.; Johnson, M. A.; McLaren, R. A.; Sutton, E. C.
Title Heterodyne detection of CO2 emission lines and wind velocities in the atmosphere of Venus Type Journal Article
Year 1976 Publication Astrophys. J. Abbreviated Journal
Volume 208 Issue Pages L141-L144
Keywords (up) carbon dioxide, emission spectra, optical heterodyning, planetary radiation, venus atmosphere, wind velocity, doppler effect, infrared radiation, ultraviolet radiation, venus clouds
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Call Number Serial 455
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Author Pyatkov, F.; Khasminskaya, S.; Kovalyuk, V.; Hennrich, F.; Kappes, M. M.; Goltsman, G. N.; Pernice, W. H. P.; Krupke, R.
Title Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers Type Journal Article
Year 2017 Publication Beilstein J. Nanotechnol. Abbreviated Journal Beilstein J. Nanotechnol.
Volume 8 Issue Pages 38-44
Keywords (up) carbon nanotubes; CNT; infrared; integrated optics devices; nanomaterials
Abstract Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion of fast electrical signals into optical ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs are promising high-speed transducers for light-pulse generation in the gigahertz range. Using a scalable fabrication approach we realize hybrid CNT-based nanophotonic devices, which generate optical pulse trains in the range from 200 kHz to 2 GHz with decay times below 80 ps. Our results illustrate the potential of CNTs for hybrid optoelectronic systems and nanoscale on-chip light sources.
Address Department of Materials and Earth Sciences, Technische Universitat Darmstadt, Darmstadt 64287, Germany
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ISSN 2190-4286 ISBN Medium
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Notes PMID:28144563; PMCID:PMC5238692 Approved no
Call Number RPLAB @ kovalyuk @ Serial 1109
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Author Tretyakov, I.; Svyatodukh, S.; Perepelitsa, A.; Ryabchun, S.; Kaurova, N.; Shurakov, A.; Smirnov, M.; Ovchinnikov, O.; Goltsman, G.
Title Ag2S QDs/Si heterostructure-based ultrasensitive SWIR range detector Type Journal Article
Year 2020 Publication Nanomaterials (Basel) Abbreviated Journal Nanomaterials (Basel)
Volume 10 Issue 5 Pages 1-12
Keywords (up) detector; quantum dots; short-wave infrared range; silicon
Abstract In the 20(th) century, microelectronics was revolutionized by silicon-its semiconducting properties finally made it possible to reduce the size of electronic components to a few nanometers. The ability to control the semiconducting properties of Si on the nanometer scale promises a breakthrough in the development of Si-based technologies. In this paper, we present the results of our experimental studies of the photovoltaic effect in Ag2S QD/Si heterostructures in the short-wave infrared range. At room temperature, the Ag2S/Si heterostructures offer a noise-equivalent power of 1.1 x 10(-10) W/ radicalHz. The spectral analysis of the photoresponse of the Ag2S/Si heterostructures has made it possible to identify two main mechanisms behind it: the absorption of IR radiation by defects in the crystalline structure of the Ag2S QDs or by quantum QD-induced surface states in Si. This study has demonstrated an effective and low-cost way to create a sensitive room temperature SWIR photodetector which would be compatible with the Si complementary metal oxide semiconductor technology.
Address Laboratory of nonlinear optics, Zavoisky Physical-Technical Institute of the Russian Academy of Sciences, Kazan 420029, Russia
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Language English Summary Language Original Title
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ISSN 2079-4991 ISBN Medium
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Notes PMID:32365694; PMCID:PMC7712218 Approved no
Call Number Serial 1151
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Author Doi, Y.; Wang, Z.; Ueda, T.; Nickels, P.; Komiyama, S.; Patrashin, M.; Hosako, I.; Matsuura, S.; Shirahata, M.; Sawayama, Y.; Kawada, M.
Title CSIP – a novel photon-counting detector applicable for the SPICA far-infrared instrument Type Journal Article
Year 2009 Publication SPICA Abbreviated Journal SPICA
Volume Issue SPICA Workshop 2009 Pages
Keywords (up) detectors; Infrared
Abstract We describe a novel GaAs/AlGaAs double-quantumwell device for the infrared photon detection, called ChargeSensitive Infrared Phototransistor (CSIP). The principle of CSIP detector is the photo-excitation of an intersubband transition in a QW as an charge integrating gate and the signal ampli<ef><ac><81>cation by another QW as a channel with very high gain, which provides us with extremely high responsivity (104 – 106 A/W). It has been demonstrated that the CSIP designed for the mid-infrared wavelength (14.7 μm) has an excellent sensitivity; the noise equivalent power (NEP) of 7 × 10-19 W/ with the quantum effciency of ~ 2%. Advantages of the CSIP against the other highly sensitive detectors are, huge dynamic range of > 106, low output impedance of 103 – 104 Ohms, and relatively high operation temperature (> 2 K). We discuss possible applications of the CSIP to FIR photon detection covering 35 – 60 μm waveband, which is a gap uncovered with presently available photoconductors.
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Call Number RPLAB @ gujma @ Serial 672
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Author Krasnopolsky, Vladimir A.; Maillard, Jean Pierre; C. Owen, Tobias
Title Detection of methane in the martian atmosphere: evidence for life? Type Journal Article
Year 2004 Publication Icarus Abbreviated Journal Icarus
Volume 172 Issue 2 Pages 537-547
Keywords (up) FTS, Mars atmosphere, methane absorption lines, IR spectroscopy, infrared spectroscopy, landfill gas
Abstract Using the Fourier Transform Spectrometer at the Canada–France–Hawaii Telescope, we observed a spectrum of Mars at the P-branch of the strongest CH4 band at 3.3 μm with resolving power of 180,000 for the apodized spectrum. Summing up the spectral intervals at the expected positions of the 15 strongest Doppler-shifted martian lines, we detected the absorption by martian methane at a 3.7 sigma level which is exactly centered in the summed spectrum. The observed CH4 mixing ratio is 10±3 ppb. Total photochemical loss of CH4 in the martian atmosphere is equal to View the MathML source, the CH4 lifetime is 340 years and methane should be uniformly mixed in the atmosphere. Heterogeneous loss of atmospheric methane is probably negligible, while the sink of CH4 during its diffusion through the regolith may be significant. There are no processes of CH4 formation in the atmosphere, so the photochemical loss must therefore be balanced by abiogenic and biogenic sources. Outgassing from Mars is weak, the latest volcanism is at least 10 million years old, and thermal emission imaging from the Mars Odyssey orbiter does not reveal any hot spots on Mars. Hydrothermal systems can hardly be warmer than the room temperature at which production of methane is very low in terrestrial waters. Therefore a significant production of hydrothermal and magmatic methane is not very likely on Mars. The calculated average production of CH4 by cometary impacts is 2% of the methane loss. Production of methane by meteorites and interplanetary dust does not exceed 4% of the methane loss. Methane cannot originate from an extinct biosphere, as in the case of “natural gas” on Earth, given the exceedingly low limits on organic matter set by the Viking landers and the dry recent history which has been extremely hostile to the macroscopic life needed to generate the gas. Therefore, methanogenesis by living subterranean organisms is a plausible explanation for this discovery. Our estimates of the biomass and its production using the measured CH4 abundance show that the martian biota may be extremely scarce and Mars may be generally sterile except for some oases.
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Call Number Serial 879
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Author Gershenson, M. E.; Gong, D.; Sato, T.; Karasik, B. S.; Sergeev, A. V.
Title Millisecond electron-phonon relaxation in ultrathin disordered metal films at millikelvin temperatures Type Journal Article
Year 2001 Publication Appl. Phys. Lett. Abbreviated Journal
Volume 79 Issue Pages 2049-2051
Keywords (up) HEB detector, FIR, far infrared
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Call Number RPLAB @ s @ heb_eph_interaction_Gershenzon Serial 315
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Author Финкель, М. И.
Title Терагерцовые смесители на эффекте электронного разогрева в ультратонких плёнках NbN и NbTiN Type Manuscript
Year 2006 Publication М. МПГУ Abbreviated Journal
Volume Issue Pages
Keywords (up) HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion bandwidth, conversion loss
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Corporate Author Thesis Ph.D. thesis
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Call Number Serial 597
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Author Масленников, Сергей Николаевич
Title Смесители на эффекте электронного разогрева для терагерцового и инфракрасного диапазонов Type Manuscript
Year 2007 Publication М. МПГУ Abbreviated Journal
Volume Issue Pages
Keywords (up) HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion loss
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Publisher Place of Publication Editor
Language Russian Summary Language Original Title
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Call Number Serial 481
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Author Lobanov, Yury; Shcherbatenko, Michael; Shurakov, Alexander; Rodin, Alexander V.; Klimchuk, Artem; Nadezhdinsky, Alexander I.; Maslennikov, Sergey; Larionov, Pavel; Finkel, Matvey; Semenov, Alexander; Verevkin, Aleksandr A.; Voronov, Boris M.; Ponurovsky, Yakov; Klapwijk, Teunis M.; Gol'tsman, Gregory N.
Title Heterodyne detection at near-infrared wavelengths with a superconducting NbN hot-electron bolometer mixer Type Journal Article
Year 2014 Publication Opt. Lett. Abbreviated Journal
Volume 39 Issue 6 Pages 1429-1432
Keywords (up) HEB, zebra, IR, infrared
Abstract We report on the development of a highly sensitive optical receiver for heterodyne IR spectroscopy at the communication wavelength of 1.5 μm (200 THz) by use of a superconducting hot-electron bolometer. The results are important for the resolution of narrow spectral molecular lines in the near-IR range for the study of astronomical objects, as well as for quantum optical tomography and fiber-optic sensing. Receiver configuration as well as fiber-to-detector light coupling designs are discussed. Light absorption of the superconducting detectors was enhanced by nano-optical antennas, which were coupled to optical fibers. An intermediate frequency (IF) bandwidth of about 3 GHz was found in agreement with measurements at 300 GHz, and a noise figure of about 25 dB was obtained that was only 10 dB above the quantum limit.
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Call Number Serial 906
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Author Soifer, B. T.; Pipher, J. L.
Title Instrumentation for infrared astronomy Type Journal Article
Year 1978 Publication Annual Rev. Astron. Astrophys. Abbreviated Journal
Volume 16 Issue 1 Pages 335-369
Keywords (up) infrared applications
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ISSN 0066-4146 ISBN Medium
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Call Number Serial 492
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Author Thiébeau, C.; Courtois, D.; Delahaigue, A.; Corre, H.; Mouanda, J. C.; Fayt, A.
Title Dual-beam laser heterodyne spectrometer: Ethylene absorption spectrum in the 10 μm range Type Journal Article
Year 1988 Publication Applied Physics B: Photophysics and Laser Chemistry Abbreviated Journal Appl. Phys. B
Volume 47 Issue 4 Pages 313-318
Keywords (up) infrared applications
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ISSN 0721-7269 ISBN Medium
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Call Number Serial 493
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