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Driessen, Eduard Frans Clemens |
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Coupling light to periodic nanostructures |
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2009 |
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Faculty of Science, Leiden University |
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Fac. Scien., Leiden Un. |
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144 |
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Issue Date: 2009-09-24 |
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RPLAB @ gujma @ |
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675 |
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Author |
Hadfield, Robert H. |
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Title |
Single-photon detectors for optical quantum information applications |
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Journal Article |
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2009 |
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Nature Photonics |
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Nature Photonics |
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3 |
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696-705 |
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The past decade has seen a dramatic increase in interest in new single-photon detector technologies. A major cause of this trend has undoubtedly been the push towards optical quantum information applications such as quantum key distribution. These new applications place extreme demands on detector performance that go beyond the capabilities of established single-photon detectors. There has been considerable effort to improve conventional photon-counting detectors and to transform new device concepts into workable technologies for optical quantum information applications. This Review aims to highlight the significant recent progress made in improving single-photon detector technologies, and the impact that these developments will have on quantum optics and quantum information science. |
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RPLAB @ gujma @ |
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678 |
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Смирнов, Андрей Владимирович |
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Исследование полосы преобразования терагерцовых смесителей на эффекте электронного разогрева в NbZr, NbN и в одиночном гетеропереходе AlGaAs/GaAs |
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2009 |
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Радиофизика |
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Радиофиз. |
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139 |
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Диссертация |
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no |
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RPLAB @ gujma @ |
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718 |
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Lobanov, Y.; Tong, C.; Blundell, R.; Gol'tsman, G. |
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A study of direct detection effect on the linearity of hot electron bolometer mixers |
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2009 |
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Proc. 20th Int. Symp. Space Terahertz Technol. |
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Proc. 20th ISSTT |
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282-287 |
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HEB mixer, direct detection effect |
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We have performed a study of how direct detection affects the linearity and hence the calibration of an HEB mixer. Two types of waveguide HEB devices have been used: a 0.8 THz HEB mixer and a 1.0 THz HEB mixer which is ~5 times smaller than the former. Two independent experimental approaches were used. In the ΔG/G method, the conversion gain of the HEB mixer is first measured as a function of the bias current for a number of bias voltages. At each bias setting, we carefully measure the change in the operating current when the input loads are switched. From the measured data, we can derive the expected difference in gain between the hot and cold loads. In the second method (injection method [1]), the linearity of the HEB mixer is independently measured by injecting a modulated signal for different input load temperatures. The results of both approaches confirm that there is gain compression in the operation of HEB mixers. Based on the results of our measurements, we discuss the impact of direct detection effects on the operation of HEB mixers. |
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RPLAB @ gujma @ |
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724 |
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Hu, Xiaolong; Dauler, Eric A.; Kerman, Andrew J.; Yang, Joel K. W.; White, James E.; Herder, Charles H.; Berggren, Karl K. |
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Using surface plasmons to enhance the speed and efficiency of superconducting nanowire single-photon detectors |
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2009 |
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Proceedings of the Conference on Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference |
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Proc of Conf. on Lasers and El.-Opt. |
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1-2 |
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optical antennas |
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We report our design and fabrication of superconducting nanowire single-photon detectors integrated with gold plasmonic nanostructures, which can enhance the absorption of TM-polarized light, and can enlarge the effective area without sacrificing detector speed. |
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744 |
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