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Author (up) Hadfield, Robert H. doi  openurl
  Title 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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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 678  
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Author (up) Kawano, Yukio; Ishibashi, Koji url  doi
openurl 
  Title An on-chip near-field terahertz probe and detector Type Journal Article
  Year 2008 Publication Nature Photonics Abbreviated Journal Nature Photon  
  Volume 2 Issue 10 Pages 618-621  
  Keywords single molecule, terahertz, THz, near-field, microscopy, imaging, 2DEG, GaAs/AlGaAs, detector, applications  
  Abstract The advantageous properties of terahertz waves, such as their transmission through objects opaque to visible light, are attracting attention for imaging applications. A promising approach for achieving high spatial resolution is the use of near-field imaging. Although this method has been well established in the visible and microwave regions, it is challenging to perform in the terahertz region. In the terahertz techniques investigated to date, detectors have been located remotely from the probe, which degrades sensitivity, and the influence of far-field waves is unavoidable. Here we present a new integrated detection device for terahertz near-field imaging in which all the necessary detection components — an aperture, a probe and a terahertz detector — are integrated on one semiconductor chip, which is cryogenically cooled. This scheme allows highly sensitive, high-resolution detection of the evanescent field alone and promises new capabilities for high-resolution terahertz imaging.  
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  ISSN 1749-4885 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 570  
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Author (up) Li, Mo; Pernice, W. H. P.; Xiong, C.; Baehr-Jones, T.; Hochberg, M.; Tang, H. X. url  doi
openurl 
  Title Harnessing optical forces in integrated photonic circuits Type Journal Article
  Year 2008 Publication Nature Abbreviated Journal Nature  
  Volume 456 Issue 7221 Pages 480-484  
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  ISSN 0028-0836 ISBN Medium  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 425  
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Author (up) Sahu, Mitrabhanu; Bae, Myung-Ho; Rogachev, Andrey; Pekker, David; Wei, Tzu-Chieh; Shah, Nayana; Goldbart, Paul M.; Bezryadin, Alexey doi  openurl
  Title Individual topological tunnelling events of a quantum field probed through their macroscopic consequences Type Journal Article
  Year 2009 Publication Nature Phys. Abbreviated Journal Nature Phys.  
  Volume 5 Issue Pages 503-508  
  Keywords phase slips, superconducting nanowires  
  Abstract Phase slips are topological fluctuations that carry the superconducting order-parameter field between distinct current-carrying states. Owing to these phase slips, superconducting nanowires acquire electrical resistance. In such wires, it is well known that at higher temperatures phase slips occur through the process of thermal barrier-crossing by the order-parameter field. At low temperatures, the general expectation is that phase slips should proceed through quantum tunnelling events, which are known as quantum phase slips. However, resistive measurements have produced evidence both for and against the occurrence of quantum phase slips. Here, we report evidence for the observation of individual quantum phase-slip events in homogeneous ultranarrow wires at high bias currents. We accomplish this through measurements of the distribution of switching currents for which the width exhibits a rather counter-intuitive, monotonic increase with decreasing temperature. Importantly, measurements show that in nanowires with larger critical currents, quantum fluctuations dominate thermal fluctuations up to higher temperatures.  
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  Notes Recommended by Klapwijk Approved no  
  Call Number Serial 928  
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Author (up) Taylor, F.W. url  doi
openurl 
  Title Atmospheric physics: Natural lasers on Venus and Mars Type Journal Article
  Year 1983 Publication Nature Abbreviated Journal Nature  
  Volume 306 Issue 5944 Pages 640-640  
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  ISSN 0028-0836 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 457  
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