| Records |
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Yang, J.K.W.; Kerman, A.J.; Dauler, E.A.; Cord, B.; Anant, V.; Molnar, R.J.; Berggren, K.K. |
| Title |
Suppressed critical current in superconducting nanowire single-photon detectors with high fill-factors |
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Journal Article |
| Year |
2009 |
Publication |
IEEE Trans. Appl. Supercond. |
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| Volume |
19 |
Issue |
3 |
Pages |
318-322 |
| Keywords |
SNSPD |
| Abstract |
In this work we present a new fabrication process that enabled the fabrication of superconducting nanowire single photon detectors SNSPD with fill-factors as high as 88% with gaps between nanowires as small as 12 nm. This fabrication process combined high-resolution electron-beam lithography with photolithography. Although this work was motivated by the potential of increased detection efficiency with higher fill-factor devices, test results showed an unexpected systematic suppression in device critical currents with increasing fill-factor. |
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RPLAB @ gujma @ |
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677 |
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Yates, S. J. C.; Baryshev, A. M.; Baselmans, J. J. A.; Klein, B.; Güsten, R. |
| Title |
Fast Fourier transform spectrometer readout for large arrays of microwave kinetic inductance detectors |
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Journal Article |
| Year |
2009 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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95 |
Issue |
4 |
Pages |
3 |
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Microwave kinetic inductance detectors have great potential for large, very sensitive detector arrays for use in, for example, submillimeter imaging. Being intrinsically readout in the frequency domain, they are particularly suited for frequency domain multiplexing allowing ~1000 s of devices to be readout with one pair of coaxial cables. However, this moves the complexity of the detector from the cryogenics to the warm electronics. We present here the concept and experimental demonstration of the use of fast Fourier transform spectrometer readout, showing no deterioration of the noise performance compared to the low noise analog mixing while allowing high multiplexing ratios. |
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RPLAB @ gujma @ |
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697 |
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Zhizhon, Yan; Majedi, Hamed A. |
| Title |
Optoelectronic mixing in the NbN superconducting nanowire single photon detectors |
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Conference Article |
| Year |
2009 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
3786 |
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Pages |
9 |
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Optoelectronic devices, microwave superconductivity, nonlinearity, single photon detector, superconductivity, nanowire, optical mixing, microwave mixers, amplitude modulation, intensity modulation. |
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In this paper, we present our experimental results on the electrically pumped optoelectronic mixing effect exhibited in a niobium nitride (NbN) superconducting nanowire. The experimental setup in order to test the mixer has been reported in detail. This superconductive nanowire optoelectronic mixer demonstrates photodetection and mixing in an integrated manner. We have explored both effects under a great variety of external conditions, such as temperature and bias current, in order to seek potential ways toward quantum optoelectronic detection and mixing by such nanowire device. |
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RPLAB @ gujma @ |
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651 |
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Zurek, Wojciech Hubert |
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Quantum Darwinism |
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Journal Article |
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2009 |
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Nature Physics |
Abbreviated Journal |
Nat. Phys. |
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5 |
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3 |
Pages |
181-188 |
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fromIPMRAS |
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Quantum Darwinism describes the proliferation, in the environment, of multiple records of selected states of a quantum system. It explains how the quantum fragility of a state of a single quantum system can lead to the classical robustness of states in their correlated multitude; shows how effective `wave-packet collapse' arises as a result of the proliferation throughout the environment of imprints of the state of the system; and provides a framework for the derivation of Born's rule, which relates the probabilities of detecting states to their amplitudes. Taken together, these three advances mark considerable progress towards settling the quantum measurement problem. |
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RPLAB @ gujma @ |
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799 |
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| Author |
Елезов, М. С.; Корнеев, А. А; Дивочий, А. В.; Гольцман, Г. Н. |
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Сверхпроводящие однофотонные детекторы с разрешением числа фотонов |
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Conference Article |
| Year |
2009 |
Publication |
Науч. сессия МИФИ |
Abbreviated Journal |
Науч. сессия МИФИ |
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47-58 |
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PNR SSPD, SNSPD |
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978-5-7262-1042-1 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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RPLAB @ sasha @ елезов2009сверхпроводящие |
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1029 |
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