Nature Photonics contents June 2012 Volume 6 Number 6 pp335-406

Advertisement Direct writing of photonic and waveguides devices without stitching errors? Visit Raith and learn why FBMS writing does not induce stitching errors in Raith electron and ion beam lithography systems. TABLE OF CONTENTS June 2012 Volume 6, Issue 6 Editorial Commentary Books and Arts Research Highlights News and Views Letters Articles Interview Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement The Arab world has a rich history of scientific breakthroughs. Ensure you're part of the scientific and medical community gaining access to a regularly updated list of science jobs and local events in the Middle East. www.nature.com/nmiddleeast/ Follow us: Facebook, Twitter, & Google +   Editorial Top Contributors, guests and ghosts p335 doi:10.1038/nphoton.2012.116 Why do we need statements to define the contributions made by each author? Does this practice help or hinder scientists, and which demographic is most affected? Full Text | PDF Commentary Top The perils of solar cell efficiency measurements pp337 - 340 Henry J. Snaith doi:10.1038/nphoton.2012.119 Ignorance and negligence are frequently causing solar cells to be mischaracterized, and invalid efficiency results have been reported in a number of journals. This problem can be greatly alleviated by employing a few simple precautions and guidelines. Full Text | PDF Books and Arts Top New titles at a glance p341 Optical Properties of Photonic Structures: Interplay of Order and Disorder by Mikhail Limonov and Richard de la Rue doi:10.1038/nphoton.2012.117 Full Text | PDF Research Highlights Top Super-resolution imaging: Beyond the limit | Nonlinear optics: Fixed-point attractor | Nonlinear optics: Plasmons versus photons | Lasers: Less-than-one-photon success | Semiconductors: Quasi-permanent change | Photodetectors: Improved UV-A sensing | Waveguides: Negative radiation pressure | Metrology: Position detection | Molecular logic: DNA control | Microscopy: Detecting malaria News and Views Top Artificial vision: Solar cells for the blind pp344 - 345 Eberhart Zrenner doi:10.1038/nphoton.2012.114 Electronic implants have been used to restore visual function lost as a result of retinal degeneration. Combining subretinal high-pixel-density arrays with optically powered serial photovoltaic sensors may alleviate some of the difficulties associated with today's devices, which rely on implanted arrays and inductive coils. Full Text | PDF See also: Article by Mathieson et al. Optical sensors: Checking cell temperature p346 Oliver Graydon doi:10.1038/nphoton.2012.123 Full Text | PDF Laser particle acceleration: Pushing atoms with light pp346 - 348 Andreas Osterwalder doi:10.1038/nphoton.2012.115 Controlling the velocity of neutral particles is an experimental challenge, owing to their absence of charge. Scientists have now demonstrated a technique that can be used to accelerate neutral argon atoms by polarizing them in moving optical lattices. Full Text | PDF See also: Article by Maher-McWilliams et al. Quantum electronics: New light on quantum tunnelling pp348 - 349 Andrew J. Shields doi:10.1038/nphoton.2012.122 Recent research shows that quantum-mechanical tunnelling through individual semiconductor quantum dots can be promoted or inhibited using a low-intensity focused laser beam. This phenomenon may be useful for low-level light detection or quantum information applications. Full Text | PDF Quantum optics: The quantum picture of a detector pp350 - 351 Alessandro Zavatta and Marco Bellini doi:10.1038/nphoton.2012.120 The full quantum description of an optical detector not only reveals how it operates at the most fundamental level but also promises new opportunities in quantum information processing. Full Text | PDF See also: Letter by Zhang et al. Quantum communication: Approaching the quantum limit pp351 - 353 Konrad Banaszek doi:10.1038/nphoton.2012.121 Interrogation schemes based on quantum physics look set to push the data-handling capabilities of optical communication channels to new levels of performance. Full Text | PDF See also: Article by Chen et al. View from... Frontiers of Plasmonics: The new facets of plasmonics pp353 - 354 Noriaki Horiuchi doi:10.1038/nphoton.2012.125 Quantum plasmonics, Fano resonances, surface plasmon-polariton Airy beams and plasmon-enhanced Raman spectroscopy are some of the new aspects of plasmonics that are now being explored. Full Text | PDF Photonics JOBS of the week PhD position in Quantum Information applications Supelec (Ref. No. FP - 10) PhD: Photonic Integrated Circuits for advanced modulation formats Tyndall National Institute Naughton Assistant Professor in Physics University of Dublin, Trinity College PhD position: Fluorescence detection of friction Van 't Hoff Institute for Molecular Sciences Post-Doctoral Fellowship in Ultrafast Optical Spectroscopy Bar Ilan University More Science jobs from Photonics EVENT Photon12 03.09.12 Durham, UK More science events from Letters Top Speckle-free laser imaging using random laser illumination pp355 - 359 Brandon Redding, Michael A. Choma and Hui Cao doi:10.1038/nphoton.2012.90 Exploiting the low spatial coherence of specifically designed random lasers, researchers demonstrate speckle-free full-field imaging in the regime of intense optical scattering. Their results show that the quality of images generated from random-laser illumination is superior to those generated from spatially coherent illumination. Abstract | Full Text | PDF First lasing of an echo-enabled harmonic generation free-electron laser pp360 - 363 Z. T. Zhao, D. Wang, J. H. Chen, Z. H. Chen, H. X. Deng, J. G. Ding, C. Feng, Q. Gu, M. M. Huang, T. H. Lan, Y. B. Leng, D. G. Li, G. Q. Lin, B. Liu, E. Prat, X. T. Wang, Z. S. Wang, K. R. Ye, L. Y. Yu, H. O. Zhang, J. Q. Zhang, Me. Zhang, Mi. Zhang, T. Zhang, S. P. Zhong and Q. G. Zhou doi:10.1038/nphoton.2012.105 Lasing in X-ray free-electron lasers is typically achieved by self-amplification of spontaneous emission, which is known to have non-ideal temporal coherence and suffer from beam fluctuations. Here researchers report lasing based on echo-enabled harmonic generation at the Shanghai Deep Ultraviolet free-electron laser facility. Abstract | Full Text | PDF See also: Interview with Zhentang Zhao Mapping coherence in measurement via full quantum tomography of a hybrid optical detector pp364 - 368 Lijian Zhang, Hendrik B. Coldenstrodt-Ronge, Animesh Datta, Graciana Puentes, Jeff S. Lundeen, Xian-Min Jin, Brian J. Smith, Martin B. Plenio and Ian A. Walmsley doi:10.1038/nphoton.2012.107 By developing full quantum detector tomography, researchers simultaneously characterize the wave- and photon-number sensitivities of quantum-optical detectors to yield the largest ever parametrization in a quantum tomography experiment. The presented results reveal the role of coherence in quantum measurements and demonstrate the tunability of hybrid quantum-optical detectors. Abstract | Full Text | PDF See also: News and Views by Zavatta & Bellini Chemically etched ultrahigh-Q wedge-resonator on a silicon chip pp369 - 373 Hansuek Lee, Tong Chen, Jiang Li, Ki Youl Yang, Seokmin Jeon, Oskar Painter and Kerry J. Vahala doi:10.1038/nphoton.2012.109 Using only conventional semiconductor processing on a silicon wafer, researchers successfully fabricate an on-chip resonator with a record Q-factor of 875 million — around 20 times higher than previous results. They also demonstrate stimulated Brillouin lasers as an example application to emphasize the size control feature of the fabrication method and the ultrahigh-Q available from these resonators. Abstract | Full Text | PDF Articles Top Optical codeword demodulation with error rates below the standard quantum limit using a conditional nulling receiver pp374 - 379 Jian Chen, Jonathan L. Habif, Zachary Dutton, Richard Lazarus and Saikat Guha doi:10.1038/nphoton.2012.113 Researchers experimentally demonstrate the first joint-detection receiver capable of performing a joint measurement over pulse-position-modulation codewords. This result — the largest improvement over the standard quantum limit reported to date — is accomplished by using a conditional nulling receiver, which uses optimized-amplitude coherent pulse nulling, single-photon detection and quantum feedforward. Abstract | Full Text | PDF See also: News and Views by Banaszek An invisible metal-semiconductor photodetector pp380 - 385 Pengyu Fan, Uday K. Chettiar, Linyou Cao, Farzaneh Afshinmanesh, Nader Engheta and Mark L. Brongersma doi:10.1038/nphoton.2012.108 Researchers demonstrate a silicon nanowire photodetector whose gold electrical contacts render the device 'invisible'. The wire and gold coating have opposing dipole moments that almost cancel each other out in the far-field. Although the net dipole moment is zero, a significant photocarrier population is generated in the wire. Abstract | Full Text | PDF Laser-driven acceleration of neutral particles pp386 - 390 C. Maher-McWilliams, P. Douglas and P. F. Barker doi:10.1038/nphoton.2012.87 Researchers accelerate neutral-charge atoms from rest to a speed of 191 m s-1 over a distance of 10 µm in 70 ns. This method is applicable to many atomic and molecular species, including those without permanent electric or magnetic dipole moments, which is a requirement of some alternative techniques. Abstract | Full Text | PDF See also: News and Views by Zrenner Photovoltaic retinal prosthesis with high pixel density pp391 - 397 Keith Mathieson, James Loudin, Georges Goetz, Philip Huie, Lele Wang, Theodore I. Kamins, Ludwig Galambos, Richard Smith, James S. Harris, Alexander Sher and Daniel Palanker doi:10.1038/nphoton.2012.104 Researchers demonstrate, in both normal and degenerate rat retinas, a photovoltaic subretinal prosthesis in which the silicon photodiodes in each pixel receive power and data through pulsed near-infrared illumination. Abstract | Full Text | PDF A micromachining-based technology for enhancing germanium light emission via tensile strain pp398 - 405 Jinendra Raja Jain, Aaron Hryciw, Thomas M. Baer, David A. B. Miller, Mark L. Brongersma and Roger T. Howe doi:10.1038/nphoton.2012.111 Scientists employ a micromachining-based technology to achieve significant enhancements in light emission from highly strained germanium-on-insulator samples. Abstract | Full Text | PDF Interview Top Towards full-coherence FELs p406 Interview with Zhentang Zhao doi:10.1038/nphoton.2012.118 Zhentang Zhao from the Shanghai Institute of Applied Physics spoke with Nature Photonics about how he and his co-workers achieved first lasing in an echo-enabled harmonic generation free-electron laser. Full Text | PDF See also: Letter by Zhao et al. Top Advertisement The Naturejobs Career Expo London 2012 UK's largest career fair and conference focused exclusively on the scientific world. 20 September 2012 - Business Design Centre, London, UK Register today! Career fair is FREE of charge. 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