| Records |
| Author |
O'Neal, Claire |
| Title |
A project guide to rocks and minerals |
Type |
Book Whole |
| Year |
2010 |
Publication |
Mitchell Lane Publishers |
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Pages |
1-47 |
| Keywords |
children |
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no |
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1147 |
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| Author |
Семенов, Александр Владимирович |
| Title |
Проскальзывание фазы, поглощение электромагнитного излучения и формирование отклика в детекторах на основе узких полосок сверхпроводников |
Type |
Manuscript |
| Year |
2010 |
Publication |
М. МПГУ |
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Pages |
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| Keywords |
SSPD, SNSPD, response |
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Thesis |
Ph.D. thesis |
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| Language |
Russian |
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no |
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Serial |
1150 |
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| Author |
Lobanov, Yury V.; Tong, Cheuk-yu E.; Hedden, Abigail S.; Blundell, Raymond; Gol’tsman, Gregory N. |
| Title |
Microwave-assisted measurement of the frequency response of terahertz HEB mixers with a Fourier transform spectrometer |
Type |
Conference Article |
| Year |
2010 |
Publication |
Proc. 21th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 21th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
420-423 |
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| Abstract |
We describe a novel method of operation of the HEB direct detector for use with a Fourier Transform Spectrometer. Instead of elevating the bath temperature, we have measured the RF response of waveguide HEB mixers by applying microwave radiation to select appropriate bias conditions. In our experiment, a microwave signal is injected into the HEB mixer via its IF port. By choosing an appropriate injection level, the device can be operated close to the desired operating point. Furthermore, we have shown that both thermal biasing and microwave injection can reproduce the same spectral response of the HEB mixer. However, with the use of microwave injection, there is no need to wait for the mixer to reach thermal equilibrium, so characterisation can be done in less time. Also, the liquid helium consumption for our wet cryostat is also reduced. We have demonstrated that the signal- to-noise ratio of the FTS measurements can be improved with microwave injection. |
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no |
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Serial |
1394 |
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| Author |
Lydersen, Lars; Wiechers, Carlos; Wittmann, Christoffer; Elser, Dominique; Skaar, Johannes; Makarov, Vadim |
| Title |
Hacking commercial quantum cryptography systems by tailored bright illumination |
Type |
Journal Article |
| Year |
2010 |
Publication |
Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
| Volume |
4 |
Issue |
10 |
Pages |
686 - 689 |
| Keywords |
quantum cryptography, hacking, QKD, APD |
| Abstract |
The peculiar properties of quantum mechanics allow two remote parties to communicate a private, secret key, which is protected from eavesdropping by the laws of physics. So-called quantum key distribution (QKD) implementations always rely on detectors to measure the relevant quantum property of single photons. Here we demonstrate experimentally that the detectors in two commercially available QKD systems can be fully remote-controlled using specially tailored bright illumination. This makes it possible to tracelessly acquire the full secret key; we propose an eavesdropping apparatus built of off-the-shelf components. The loophole is likely to be present in most QKD systems using avalanche photodiodes to detect single photons. We believe that our findings are crucial for strengthening the security of practical QKD, by identifying and patching technological deficiencies. |
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no |
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RPLAB @ gujma @ |
Serial |
657 |
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| Author |
Schwarz, Brent |
| Title |
Lidar: Mapping the world in 3D |
Type |
Journal Article |
| Year |
2010 |
Publication |
Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
| Volume |
4 |
Issue |
7 |
Pages |
429-430 |
| Keywords |
LIDAR |
| Abstract |
A high-definition LIDAR system with a rotating sensor head containing 64 semiconductor lasers allows the efficient generation of 3D environment maps at unprecedented levels of detail. |
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no |
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RPLAB @ gujma @ |
Serial |
696 |
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