Nature Photonics contents February 2012 Volume 6 Number 2 pp69-128

TABLE OF CONTENTS February 2012 Volume 6, Issue 2 Editorial Research Highlights News and Views Corrections Review Letters Articles Interview 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. Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Frontiers in Materials: Spintronics May 13, 2012 • Strasbourg, France This workshop will provide an overview of the most interesting developments in the field of spintronics, a technology that aims at controlling the electron spin beside the electron charge and that could provide efficient electronic devices with potentially new functionalities. http://www.nature.com/natureconferences/spin12   Editorial Top Five years and counting p69 doi:10.1038/nphoton.2012.10 Nature Photonics celebrated its fifth birthday in January this year. Now is a good time to recap what we have done in the past, the current state of play and what we look forward to in the future. Full Text | PDF Research Highlights Top Light-emitting diodes: Indium-free alternative | Optofluidics: On-chip aerosol trap | Optical coherence tomography: Tunable for medicine | Photochemistry: Visible photocatalysis | Photonic crystal lasers: Long CW operation | Ultrafast photonics: Ultralow timing jitter | Topological insulators: Light controls currents | Colloidal nanocrystals: Excited states investigated | Optomechanics: Reciprocal action News and Views Top Organic light-emitting diodes: Non-oxide boost pp72 - 73 Yu Zhu and James M. Tour doi:10.1038/nphoton.2011.349 Researchers have shown that organic light-emitting diodes with transparent graphene electrodes are more flexible and exhibit higher efficiencies than those whose electrodes are made from rigid indium tin oxide. Full Text | PDF See also: Letter by Han et al. Laser physics: All-atom parametric oscillator pp73 - 74 Matthew T. Rakher and Kartik Srinivasan doi:10.1038/nphoton.2012.9 By using a one-dimensional optical lattice to control and confine the location of cold 87Rb atoms, researchers have created a distributed Bragg reflector that enables optical parametric oscillation solely from atoms. Full Text | PDF See also: Letter by Schilke et al. Terahertz waveplates: Paper option p75 Oliver Graydon doi:10.1038/nphoton.2011.351 Full Text | PDF Quantum optics: Correlations on a chip pp75 - 76 XinAn Xu and Chee Wei Wong doi:10.1038/nphoton.2012.6 Researchers have developed a semiconductor structure capable of supporting quantum correlations between photons and strong single-photon nonlinearities, thus paving the way for the development of chip-based devices for quantum secure communications and quantum information processing. Full Text | PDF See also: Letter by Reinhard et al. Terahertz photonics: Coherent terahertz synthesizer pp76 - 77 Masahiro Katoh and Serge Bielawski doi:10.1038/nphoton.2011.348 Photonic manipulation of the spatial distribution of charge in relativistic electron bunches provides a promising way to generate intense coherent terahertz radiation. Full Text | PDF Scientific apps: Fourier transform on the move p78 Oliver Graydon doi:10.1038/nphoton.2012.5 Full Text | PDF Nonlinear optics: Three-in-one microscopy pp78 - 80 Brett Pearson and Thomas Weinacht doi:10.1038/nphoton.2011.347 Using extremely broadband ultrafast near-infrared pulses, scientists have demonstrated simultaneous second-harmonic-generation, third-harmonic-generation and four-wave-mixing microscopy, enabling a range of different structures and functional groups in a biological sample to be imaged at once. Full Text | PDF Acoustics: Fibre-optic pickup p80 Noriaki Horiuchi doi:10.1038/nphoton.2012.3 Full Text | PDF Terahertz sources: Powerful photomixers p81 Tahsin Akalin doi:10.1038/nphoton.2012.8 An efficient continuous-wave source of terahertz radiation that combines the outputs from two near-infrared semiconductor lasers in a novel photomixer looks set to benefit applications in spectroscopy and imaging. Full Text | PDF See also: Article by Tanoto et al. View from... TeraNano 2011: Terahertz nano-exploration pp82 - 83 Noriaki Horiuchi doi:10.1038/nphoton.2012.4 Amalgamating the interdisciplinary domains of nanotechnology and terahertz technology, particularly the field of terahertz science in nanomaterials and nanodevices, seems to be where the terahertz research community is now heading. Full Text | PDF Photonics JOBS of the week Postdoctoral positions in Photonics: ICFOnest International Post-doctoral Program (COFUND) ICFO - The Institute of Photonic Sciences Assistant Professor - Biochemistry / Biophotonics South Dakota State University Fluorescence Imaging and Spectroscopy (FRET) Université Paris-Sud, NanoBioPhotonics (Ref. No. FP - 10) PhD: Photonic Integrated Circuits for advanced modulation formats Tyndall National Institute (Ref No: AE – 16) PhD: Applications of High Speed DSP in Optical Communications Tyndall National Institute More Science jobs from Photonics EVENT 12th International Multidisciplinary Scientific GeoConference & EXPO SGEM2012 17.-23.06.12 Bulgaria More science events from Corrections Top Correction p83 doi:10.1038/nphoton.2011.346 Full Text | PDF Correction p83 doi:10.1038/nphoton.2012.21 Full Text | PDF Review Top Dissipative solitons for mode-locked lasers pp84 - 92 Philippe Grelu and Nail Akhmediev doi:10.1038/nphoton.2011.345 Abstract | Full Text | PDF Letters Top Strongly correlated photons on a chip pp93 - 96 Andreas Reinhard, Thomas Volz, Martin Winger, Antonio Badolato, Kevin J. Hennessy, Evelyn L. Hu and Ataç Imamoğlu doi:10.1038/nphoton.2011.321 Researchers observe a continuous change in photon correlations from strong antibunching to bunching by tuning either the probe laser or the cavity mode frequency. These results, which demonstrate unprecedented strong single-photon nonlinearities in quantum dot cavity system, are explained by the photon blockade and tunnelling in the anharmonic Jaynes-Cummings model. Abstract | Full Text | PDF See also: News and Views by Xu & Wong Optical flywheels with attosecond jitter pp97 - 100 Andrew J. Benedick, James G. Fujimoto and Franz X. Kartner doi:10.1038/nphoton.2011.326 Scientists report a record-low integrated timing error of less than 13 as between phase-locked optical pulse trains emitted from two, nearly identical 10 fs Ti:sapphire lasers. The uniform pulse trains will enable many measurements based on the synchronization of pump-probe experiments. Abstract | Full Text | PDF Optical parametric oscillation with distributed feedback in cold atoms pp101 - 104 Alexander Schilke, Claus Zimmermann, Philippe W. Courteille and William Guerin doi:10.1038/nphoton.2011.320 Researchers demonstrate one-dimensional photonic crystal lasing with the aid of a cold atom cloud that provides both gain and distributed feedback. Distributed feedback is due to the periodic distribution of the atoms trapped in a one-dimensional lattice enabling Bragg reflection, and parametric gain is provided by four-wave mixing. Abstract | Full Text | PDF See also: News and Views by Rakher & Srinivasan Extremely efficient flexible organic light-emitting diodes with modified graphene anode pp105 - 110 Tae-Hee Han, Youngbin Lee, Mi-Ri Choi, Seong-Hoon Woo, Sang-Hoon Bae, Byung Hee Hong, Jong-Hyun Ahn and Tae-Woo Lee doi:10.1038/nphoton.2011.318 By replacing conventional indium tin oxide (ITO) anodes with high-work-function, low-sheet-resistance graphene anodes, researchers demonstrate flexible fluorescent organic LEDs with extremely high luminous efficiencies of 37.2 lm W-1 for fluorescent devices and 102.7 lm W-1 for phosphorescent devices. These values are significantly higher than those of optimized organic LEDs based on ITO anodes. Abstract | Full Text | PDF See also: News and Views by Zhu & Tour X-ray pump optical probe cross-correlation study of GaAs pp111 - 114 S. M. Durbin, T. Clevenger, T. Graber and R. Henning doi:10.1038/nphoton.2011.327 Researchers use an X-ray pump beam to change GaAs from absorbing to nearly transparent in less than 100 ps for laser photon energies just above the bandgap. They also demonstrate the opposite effect — X-ray-induced optical opacity — for photon energies just below the bandgap. Abstract | Full Text | PDF See also: Interview with Durbin Articles Top High-efficiency inverted dithienogermole-thienopyrrolodione-based polymer solar cells pp115 - 120 Cephas E. Small, Song Chen, Jegadesan Subbiah, Chad M. Amb, Sai-Wing Tsang, Tzung-Han Lai, John R. Reynolds and Franky So doi:10.1038/nphoton.2011.317 Researchers demonstrate a high-efficiency polymer solar cell whose device architecture is compatible with a large-scale roll-to-roll process. Enhanced charge collection in the inverted polymer solar cell design and certified power conversion efficiencies of around 7.4% are reported. Abstract | Full Text | PDF Greatly enhanced continuous-wave terahertz emission by nano-electrodes in a photoconductive photomixer pp121 - 126 H. Tanoto, J. H. Teng, Q. Y. Wu, M. Sun, Z. N. Chen, S. A. Maier, B. Wang, C. C. Chum, G. Y. Si, A. J. Danner and S. J. Chua doi:10.1038/nphoton.2011.322 Researchers report a room-temperature continuous-wave terahertz source based on a nanogap electrode structure in the active region of a photoconductive photomixer. The device has an emission linewidth of less than 10 MHz, an emission frequency of 0.3-1.6 THz and a maximum output power of 100 mW at 0.4 THz. Abstract | Full Text | PDF See also: News and Views by Akalin Interview Top Crystal clear p128 Interview with Stephen Durbin doi:10.1038/nphoton.2012.7 A semiconductor is usually opaque to any light whose photon energy is larger than the semiconductor bandgap. Nature Photonics spoke to Stephen Durbin about how to render GaAs semiconductor crystals transparent using intense X-ray pulses. Full Text | PDF Top Advertisement Subscribe to Nature Photonics Providing a unique forum for all aspects of photonics and opto- electronics. Subscribe today and ensure you have access to the latest original research, Commentaries, Research Highlights, News & Views, Reviews and Correspondence published in the journal. Subscribe here.   Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com More Nature Events

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