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An, Zhenghua; Chen, Jeng-Chung; Ueda, T.; Komiyama, S.; Hirakawa, K. |
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Infrared phototransistor using capacitively coupled two-dimensional electron gas layers |
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2005 |
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Applied Physics Letters |
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Appl. Phys. Lett. |
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86 |
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172106 - 172106-3 |
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2DEG |
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RPLAB @ akorneev @ |
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603 |
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Barends, R.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M. |
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Title |
Current-induced vortex unbinding in bolometer mixers |
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Journal Article |
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2005 |
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Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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87 |
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263506 (1 to 3) |
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HEB mixer numerical model, HEB model, IV-curves, vortex-antivortex, Berezinskii–Kosterlitz–Thouless theory, diffusion cooling channel, diffusion channel, distributed HEB model, distributed model, self-heating effect, temperature profile |
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We present a description of the current-voltage characteristics of hot electron bolometers in terms of the current-dependent intrinsic resistive transition of NbN films. We find that, by including this current dependence, we can correctly predict the complete current-voltage characteristics, showing excellent agreement with measurements for both low and high bias and for small as well as large devices. It is assumed that the current dependence is due to vortex-antivortex unbinding as described in the Berezinskii–Kosterlitz–Thouless theory. The presented approach will be useful in guiding device optimization for noise and bandwidth. |
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604 |
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ГОСТ Р 51904-2002. Программное обеспечение встроенных систем. Общие требования к разработке и документированию |
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2005 |
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gost, detproj |
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875 |
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Gao, J. R.; Hovenier, J. N.; Yang, Z. Q.; Baselmans, J. J. A.; Baryshev, A.; Hajenius, M.; Klapwijk, T. M.; Adam, A. J. L.; Klaassen, T. O.; Williams, B. S.; Kumar, S.; Hu, Q.; Reno, J. L. |
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Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer |
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2005 |
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Appl. Phys. Lett. |
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Appl. Phys. Lett. |
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86 |
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244104 (1 to 3) |
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HEB, QCL |
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We report the first demonstration of an all solid-stateheterodyne receiver that can be used for high-resolution spectroscopy above 2THz suitable for space-based observatories. The receiver uses a NbN superconducting hot-electron bolometer as mixer and a quantum cascade laser operating at 2.8THz as local oscillator. We measure a double sideband receiver noise temperature of 1400K at 2.8THz and 4.2K, and find that the free-running QCL has sufficient power stability for a practical receiver, demonstrating an unprecedented combination of sensitivity and stability. |
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905 |
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Stellari, Franco; Song, Peilin |
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Testing of ultra low voltage CMOS microprocessors using the superconducting single-photon detector (SSPD) |
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2005 |
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Proc. 12th IPFA |
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Proc. 12th IPFA |
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2 |
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SSPD, CMOS testing |
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In F. Stellari and P. Song (2004) the authors have shown a comparison among different detectors used for diagnosing integrated circuits (ICs) by means of the PICA method. In their experiments they used two versions of the SSPD detector (p-SSPD is a prototype version, while c-SSPD is the first commercially available generation of the detector as presented in W. K. Lo et al. (2002), as well as the imaging detector (S-25 photo-multiplier tube (PMT) as discussed in W. G. McMullan (1987)) used in the conventional PICA technique. A microprocessor chip fabricated in a 0.13 μm 1.2 V technology is used to show that c-SSPD provides a significant reduction in acquisition time for the collection of optical waveforms from chips running at very low. In this paper, the authors summarize the main results. |
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IEEE |
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0-7803-9301-5 |
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1055 |
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