| Records |
| 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 |
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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2190-4286 |
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PMID:28144563; PMCID:PMC5238692 |
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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 |
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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English |
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| ISSN |
2079-4991 |
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PMID:32365694; PMCID:PMC7712218 |
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no |
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Serial |
1151 |
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| Author |
Parrott, Edward P. J.; Zeitler, J. Axel; Fris<cc><152>c<cc><152>ic<cc><81>, Tomislav; Pepper, Michael; Jones, William; Day, Graeme M.; Gladden, Lynn F. |
| Title |
Testing the sensitivity of terahertz spectroscopy to changes in molecular and supramolecular structure: a study of structurally similar cocrystals |
Type |
Journal Article |
| Year |
2009 |
Publication |
Crystal Growth & Design |
Abbreviated Journal |
Crystal Growth & Design |
| Volume |
9 |
Issue |
3 |
Pages |
1452-1460 |
| Keywords |
supramolecular recognition, infrared, terahertz, IR, THz, TDS |
| Abstract |
Terahertz time-domain-spectroscopy (THz-TDS) has emerged as a versatile spectroscopic technique, and an alternative to powder X-ray diffraction in the characterization of molecular crystals. We tested the ability of terahertz spectroscopy to distinguish between chiral and racemic hydrogen-bonded cocrystals that are similar in molecular and supramolecular structure. Terahertz spectroscopy readily distinguished between the isostructural cocrystals of theophylline with chiral and racemic forms of malic acid which are almost identical in molecular structure and supramolecular architecture. Similarly, the cocrystals of theophylline with chiral and racemic forms of tartaric acid, which are similar at the molecular level but dissimilar in crystal packing, were distinguished unequivocally. The investigation of the same cocrystals using X-ray powder diffraction and Raman spectroscopy suggested that THz-TDS is comparable in sensitivity to diffraction methods and more sensitive than Raman spectroscopy to changes in cocrystal architecture. The differences in spectra acquired by THz-TDS could be further enhanced by cooling the samples to 109 K. |
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| ISSN |
1528-7483 |
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no |
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Serial |
567 |
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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 |
infrared applications |
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| ISSN |
0721-7269 |
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no |
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Serial |
493 |
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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 |
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| Volume |
16 |
Issue |
1 |
Pages |
335-369 |
| Keywords |
infrared applications |
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Edition |
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| ISSN |
0066-4146 |
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no |
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Serial |
492 |
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| Author |
Teich, M. C. |
| Title |
Infrared heterodyne detection |
Type |
Conference Article |
| Year |
1968 |
Publication |
Proc. IEEE |
Abbreviated Journal |
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| Volume |
56 |
Issue |
1 |
Pages |
37-46 |
| Keywords |
minimum detectable power, quantum limit, infrared, IR mixer |
| Abstract |
Heterodyne experiments have been performed in the middle infrared region of the electromagnetic spectrum using the CO2laser as a radiation source. Theoretically optimum operation has been achieved at kHz heterodyne frequencies using photoconductive Ge:Cu detectors operated at 4°K, and at kHz and MHz frequencies using Pb1-xSnxSe photovoltaic detectors at 77°K. In accordance with the theory, the minimum detectable power observed is a factor of 2/η greater than the theoretically perfect quantum counter, hvΔf. The coefficient 2/η varies from 5 to 25 for the detectors investigated in this study. A comparison is made between photoconductive and photodiode detectors for heterodyne use in the infrared, and it is concluded that both are useful. Heterodyne detection at 10.6 µm is expected to be useful for communications applications, infrared radar, and heterodyne spectroscopy. It has particular significance because of the high radiation power available from the CO2laser, and because of the 8 to 14 µm atmospheric window. |
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| Publisher |
IEEE |
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0018-9219 |
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no |
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Serial |
1060 |
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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 |
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| Volume |
79 |
Issue |
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Pages |
2049-2051 |
| Keywords |
HEB detector, FIR, far infrared |
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no |
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RPLAB @ s @ heb_eph_interaction_Gershenzon |
Serial |
315 |
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| Author |
Ferrari, S.; Kovalyuk, V.; Hartmann, W.; Vetter, A.; Kahl, O.; Lee, C.; Korneev, A.; Rockstuhl, C.; Gol'tsman, G.; Pernice, W. |
| Title |
Hot-spot relaxation time current dependence in niobium nitride waveguide-integrated superconducting nanowire single-photon detectors |
Type |
Journal Article |
| Year |
2017 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
| Volume |
25 |
Issue |
8 |
Pages |
8739-8750 |
| Keywords |
SSPD, SNSPD, photon counting; Infrared; Quantum detectors; Integrated optics; Multiphoton processes; Photon statistics |
| Abstract |
We investigate how the bias current affects the hot-spot relaxation dynamics in niobium nitride. We use for this purpose a near-infrared pump-probe technique on a waveguide-integrated superconducting nanowire single-photon detector driven in the two-photon regime. We observe a strong increase in the picosecond relaxation time for higher bias currents. A minimum relaxation time of (22 +/- 1)ps is obtained when applying a bias current of 50% of the switching current at 1.7 K bath temperature. We also propose a practical approach to accurately estimate the photon detection regimes based on the reconstruction of the measured detector tomography at different bias currents and for different illumination conditions. |
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no |
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RPLAB @ kovalyuk @ |
Serial |
1118 |
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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 |
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Pages |
319-325 |
| Keywords |
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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no |
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Serial |
449 |
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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 |
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Pages |
296-300 |
| Keywords |
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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no |
| 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 |
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Pages |
145 |
| Keywords |
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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no |
| Call Number |
ref1976ApJ...208L.145J |
Serial |
451 |
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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 |
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Pages |
387-392 |
| Keywords |
astronomical spectroscopy, infrared astronomy, infrared spectrometers, optical heterodyning, infrared telescopes, laser spectrometers, mars (planet), venus (planet) |
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no |
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Serial |
453 |
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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 |
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| Volume |
208 |
Issue |
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Pages |
L141-L144 |
| Keywords |
carbon dioxide, emission spectra, optical heterodyning, planetary radiation, venus atmosphere, wind velocity, doppler effect, infrared radiation, ultraviolet radiation, venus clouds |
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no |
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455 |
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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 |
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Issue |
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Pages |
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HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion loss |
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Thesis |
Ph.D. thesis |
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Russian |
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no |
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Serial |
481 |
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| Author |
Verevkin, A.; Slysz, W.; Pearlman, A.; Zhang, J.; Sobolewski, R.; Okunev, O.; Korneev, A.; Kouminov, P.; Smirnov, K.; Chulkova, G.; Gol’tsman, G. N.; Currie, M. |
| Title |
Real-time GHz-rate counting of infrared photons using nanostructured NbN superconducting detectors |
Type |
Conference Article |
| Year |
2003 |
Publication |
CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
| Volume |
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Issue |
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Pages |
CThM8 |
| Keywords |
NbN SSPD; SNSPD; Infrared; Quantum detectors; Detectors; Photon counting; Quantum communications; Quantum cryptography; Single photon detectors; Superconductors |
| Abstract |
We demonstrate that our ultrathin, nanometer-width NbN superconducting single-photon detectors are capable of above 1-GHz-frequency, real-time counting of near-infrared photons. The measured system jitter of the detector is below 15 ps. |
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Optical Society of America |
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Conference |
Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference |
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no |
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Serial |
1517 |
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