| Records |
| 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 |
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Journal Article |
| Year |
2009 |
Publication |
SPICA |
Abbreviated Journal |
SPICA |
| Volume |
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SPICA Workshop 2009 |
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Keywords  |
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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RPLAB @ gujma @ |
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672 |
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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 |
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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. |
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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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2079-4991 |
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PMID:32365694; PMCID:PMC7712218 |
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1151 |
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Pyatkov, F.; Khasminskaya, S.; Kovalyuk, V.; Hennrich, F.; Kappes, M. M.; Goltsman, G. N.; Pernice, W. H. P.; Krupke, R. |
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Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers |
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Journal Article |
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2017 |
Publication |
Beilstein J. Nanotechnol. |
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Beilstein J. Nanotechnol. |
| Volume |
8 |
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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. |
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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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RPLAB @ kovalyuk @ |
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1109 |
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Betz, A. L.; Johnson, M. A.; McLaren, R. A.; Sutton, E. C. |
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Heterodyne detection of CO2 emission lines and wind velocities in the atmosphere of Venus |
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Journal Article |
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1976 |
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Astrophys. J. |
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208 |
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L141-L144 |
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carbon dioxide, emission spectra, optical heterodyning, planetary radiation, venus atmosphere, wind velocity, doppler effect, infrared radiation, ultraviolet radiation, venus clouds |
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455 |
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Johnson, M. A.; Betz, A. L.; McLaren, R. A.; Townes, C. H.; Sutton, E. C. |
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Nonthermal 10 micron CO2 emission lines in the atmospheres of Mars and Venus |
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1976 |
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Astron. Astrophys. |
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A&A |
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208 |
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145 |
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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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ref1976ApJ...208L.145J |
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451 |
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