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Author Scheel, Stefan
Title (down) Single-photon sources–an introduction Type Journal Article
Year 2009 Publication J. Modern Opt. Abbreviated Journal
Volume 56 Issue 2-3 Pages 141-160
Keywords LOQC; quantum cryptography; QKD
Abstract This review surveys the physical principles and recent developments in manufacturing single-photon sources. Special emphasis is placed on important potential applications such as linear optical quantum computing (LOQC), quantum key distribution (QKD) and quantum metrology that drive the development of these sources of single photons. We discuss the quantum-mechanical properties of light prepared in a quantum state of definite photon number and compare it with coherent light that shows a Poissonian distribution of photon numbers. We examine how the single-photon fidelity directly influences the ability to transmit secure quantum bits over a predefined distance. The theoretical description of modified spontaneous decay, the main principle behind single-photon generation, provides the background for many experimental implementations such as those using microresonators or pillar microcavities. The main alternative way to generate single photons using postselection of entangled photon pairs from parametric down-conversion, will be discussed. We concentrate on describing the underlying physical principles and we will point out limitations and open problems associated with single-photon production.
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Call Number RPLAB @ gujma @ Serial 669
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Author Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Tarkhov, M. A.; Gol’tsman, G. N.
Title (down) Single-photon detectors for the visible and infrared parts of the spectrum based on NbN nanostructures Type Abstract
Year 2009 Publication Proc. Progress In Electromagnetics Research Symp. Abbreviated Journal Proc. Progress In Electromagnetics Research Symp.
Volume Issue Pages 863-864
Keywords SSPD, SNSPD
Abstract The research by the group of Moscow State Pedagogical University into the hot-electron phenomena in thin superconducting films has led to the development of new types ofdetectors [1, 2] and their use both in fundamental and applied studies [3–6]. In this paper, wepresent the results of the development and fabrication of receiving systems for the visible andinfrared parts of the spectrum optimised for use in telecommunication systems and quantumcryptography.
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Publisher Place of Publication Moscow, Russia Editor
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Call Number RPLAB @ sasha @ smirnovsession Serial 1050
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Author Hadfield, Robert H.
Title (down) Single-photon detectors for optical quantum information applications Type Journal Article
Year 2009 Publication Nature Photonics Abbreviated Journal Nature Photonics
Volume 3 Issue Pages 696-705
Keywords SPD
Abstract 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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Call Number RPLAB @ gujma @ Serial 678
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Author Jackson, B. D.; Hesper, R.; Adema, J.; Barkhof, J.; Baryshev, A. M.; Zijlstra, T.; Zhu, S.; Klapwijk, T. M.
Title (down) Series production of state-of-the-art 602-720 GHz SIS receivers for band 9 of ALMA Type Conference Article
Year 2009 Publication Proc. 20th Int. Symp. Space Terahertz Technol. Abbreviated Journal
Volume Issue Pages 7-11
Keywords SIS mixer, noise temperature, ALMA, band 9
Abstract The Atacama Large Millimeter/Sub-millimeter Array (ALMA) requires the development and production of 73 state-of-the-art receivers for the 602-720 GHz range – the ALMA Band 9 cartridges. Development and pre-production of the first 8 cartridges was completed between 2003 and 2008, resulting in a cartridge design that meets the project's challenging requirements. The cartridge design remains essentially unchanged for production, while the production and test processes developed during pre-production have been fine-tuned to address the biggest new challenge for this phase – ramping up production to a rate of 2 cartridges per month over 2009-2012.
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Call Number Serial 618
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Author Polyakov, Sergey V.; Migdalla, Alan L.
Title (down) Quantum radiometry Type Journal Article
Year 2009 Publication J. Modern Opt. Abbreviated Journal
Volume 56 Issue 9 Pages 1045-1052
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Abstract We review radiometric techniques that take advantage of photon counting and stem from the quantum laws of nature. We present a brief history of metrological experiments and review the current state of experimental quantum radiometry.
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Call Number RPLAB @ gujma @ Serial 671
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