Nature Photonics contents April 2018 Volume 12 Number 4

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Learn More   Advertisement Looking for Quantum Coincidences?  The QuCoa software package from PicoQuant is an intuitive and integrated solution for coincidence detection and counting using state of the art TCSPC electronics. Ideal for use in research fields as varied as studying single photon sources in Hanbury-Brown-Twiss setups, entanglement according to Hong-Ou Mandel, or quantum key distribution.   Advertisement Nature Machine Intelligence launching Launching in January 2019, Nature Machine Intelligence will publish research from a wide range of topics underpinning machine learning, robotics and AI. The journal will also explore and discuss emerging cross-disciplinary themes, such as human-robot interaction, and provide a platform to discuss the significant impact that AI has on other fields in science, society and industry. Find out more     Advertisement Do you have a career question?  The Naturejobs podcast features one-on-one Q&As, panel discussions and other exclusive content to help scientists with their careers. Hosted on the Naturejobs blog, the podcast is also available on iTunes and Soundcloud. Listen today!   Editorial   Giant lasers in the US threatened with closure    p187 doi:10.1038/s41566-018-0158-8 Books & Arts   On our bookshelf    p188 doi:10.1038/s41566-018-0140-5 Research Highlights   Broadband absorption    p189 David F. P. Pile doi:10.1038/s41566-018-0146-z Nanoparticle identification    p189 Oliver Graydon doi:10.1038/s41566-018-0147-y Topological data analysis    p189 Oliver Graydon doi:10.1038/s41566-018-0148-x On-chip spectroscopy    p189 Oliver Graydon doi:10.1038/s41566-018-0149-9 Optical spin transfer    p189 Noriaki Horiuchi doi:10.1038/s41566-018-0150-3 News & Views   The complete optical oscilloscope    pp190 - 191 Cheng Lei & Keisuke Goda doi:10.1038/s41566-018-0141-4 Thermoelectric fields hold nanoparticles    pp191 - 193 Frank Cichos doi:10.1038/s41566-018-0143-2 High-resolution strain imaging    p193 Noriaki Horiuchi doi:10.1038/s41566-018-0142-3 The genuine article    p194 David Pile doi:10.1038/s41566-018-0151-2 Nature Photonics JOBS of the week Tenure Track Assistant Professor in »Laser based Additive Manufacturing« Technical University of Munich (TUM) PhD fellowship in Ion Channel Function University of Copenhagen Open Faculty Positions for Tsinghua-Berkeley Shenzhen Institute The Tsinghua-Berkeley Shenzhen Institute Looking for Talented Researchers at Beijing University of Chemical Technology, College of Chemical Engineering Beijing University of Chemical Technology PhD Program Ecole Polytechnique More Science jobs from Nature Photonics EVENT The 11th International Symposium on Photonics and Optoelectronics (SOPO 2018) 18.08.18 Kunming, China More science events from Articles   Opto-thermoelectric nanotweezers    pp195 - 201 Linhan Lin, Mingsong Wang, Xiaolei Peng, Emanuel N. Lissek, Zhangming Mao et al. doi:10.1038/s41566-018-0134-3 Heating due to optical losses in metal nanoparticles, which is usually an unwanted side effect, is harnessed to realize low-power opto-thermoelectric nanotweezers.   High-coherence mid-infrared dual-comb spectroscopy spanning 2.6 to 5.2 µm    pp202 - 208 Gabriel Ycas, Fabrizio R. Giorgetta, Esther Baumann, Ian Coddington, Daniel Herman et al. doi:10.1038/s41566-018-0114-7 By employing difference-frequency generation, a mid-infrared dual-comb spectrometer covering the 2.6 to 5.2 µm range is demonstrated with comb-tooth resolution, sub-MHz frequency precision and accuracy, and a spectral signal-to-noise ratio as high as 6,500.   Massively parallel sensing of trace molecules and their isotopologues with broadband subharmonic mid-infrared frequency combs    pp209 - 214 A. V. Muraviev, V. O. Smolski, Z. E. Loparo & K. L. Vodopyanov doi:10.1038/s41566-018-0135-2 A dual-comb spectrometer based on a pair of ultra-broadband optical parametric oscillators is demonstrated. It provides the simultaneous acquisition of 350,000 spectral data points, spaced by a 115 MHz intermodal interval over the 3.1–5.5 µm spectral range.   Attosecond time–energy structure of X-ray free-electron laser pulses    pp215 - 220 N. Hartmann, G. Hartmann, R. Heider, M. S. Wagner, M. Ilchen et al. doi:10.1038/s41566-018-0107-6 Attosecond time–energy characterization of pulses generated by the Linac Coherent Light Source (LCLS) X-ray free-electron laser is enabled by angular streaking measurements.   Real-time full-field characterization of transient dissipative soliton dynamics in a mode-locked laser    pp221 - 227 P. Ryczkowski, M. Närhi, C. Billet, J.-M. Merolla, G. Genty et al. doi:10.1038/s41566-018-0106-7 The simultaneous use of dispersive Fourier transform and time-lens measurements allows complete characterization of the unstable spectral and temporal evolution of ultrashort dissipative solitons, providing further insight into ultrafast transient dynamics in optics.   Single-shot measurement of phase and amplitude by using a heterodyne time-lens system and ultrafast digital time-holography    pp228 - 234 doi:10.1038/s41566-018-0113-8 The use of a phase-sensitive time-lens system allows single-shot recording of both the amplitude and phase of random and complex signals with a high temporal resolution of ~80?fs over a long time window of ~40 ps.   Diboron compound-based organic light-emitting diodes with high efficiency and reduced efficiency roll-off    pp235 - 240 Tien-Lin Wu, Min-Jie Huang, Chih-Chun Lin, Pei-Yun Huang, Tsu-Yu Chou et al. doi:10.1038/s41566-018-0112-9 Organic light-emitting diodes featuring the compounds CzDBA and tBuCzBDA are shown to not only offer high external quantum efficiency, but also minimal reduction in performance at high brightness.   In situ 3D nanoprinting of free-form coupling elements for hybrid photonic integration    pp241 - 247 P.-I. Dietrich, M. Blaicher, I. Reuter, M. Billah, T. Hoose et al. doi:10.1038/s41566-018-0133-4 By exploiting two-photon laser lithography for in situ printing of facet-attached beam-shaping elements, hybrid photonic integration can now be realized, opening opportunities for the automated assembly of photonic multi-chip systems with unprecedented performance and versatility.   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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