Nature Photonics contents June 2015 Volume 9 Number 6 pp 345-416

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Advertisement Advanced Nanolithography and analytical SEM in a single system? Visit Raith's New Website and learn more about the perfect EBL-SEM hybrid PIONEER Two. TABLE OF CONTENTS June 2015 Volume 9, Issue 6 Editorial Commentary Books and Arts Research Highlights News and Views Review Letters Articles Erratum Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement LSA - A carrier multiplication efficiency of approximately 190% is measured for photo-excitation at 2.8 times the optical bandgap of germanium nanocrystals, deduced from their photoluminescence spectra. A recent article published in Light: Science and Application studies carrier multiplication in germanium nanocrystals.  Download PDF      Editorial Top Master of electrons and photons   p345 doi:10.1038/nphoton.2015.100 Nikola Tesla is known for his work on alternating current power systems, induction motors and wireless transmission but he is also an unsung hero of research into X-rays and light sources. Commentary Top Memories of Charles Townes   pp347 - 350 Elsa Garmire doi:10.1038/nphoton.2015.91 Charles Townes, the Nobel laureate acclaimed for his pioneering work on lasers and nonlinear optics, sadly passed away in January this year. Here I offer personal reflections of working with him as one of his graduate students. Books and Arts Top New titles at a glance   p351 Plasmonic Effects in Metal–Semiconductor Nanostructures By Alexey A. Toropov and Tatiana V. Shubina doi:10.1038/nphoton.2015.90 Research Highlights Top Quantum communication: Twisted beam benefit | Quantum cascade lasers: Electrical frequency tuning | Extreme ultraviolet: Vortex beam generation | Perovskites: Nanowire lasing | Cathodoluminescence: Nanoscale tomography News and Views Top Integrated optics: Nanostructured silicon success   pp353 - 355 Koray Aydin doi:10.1038/nphoton.2015.89 An inverse-design approach yields ultra-compact, high-performance photonic components from patterns of complex, subwavelength voids etched into silicon. Photovoltaics: Non-cubic solar cell materials   pp355 - 357 Vera Steinmann, Riley E. Brandt and Tonio Buonassisi doi:10.1038/nphoton.2015.85 Controlled growth of non-cubic, anisotropic solar cell materials, such as antimony selenide, is bringing new opportunities for efficient thin-film photovoltaics. See also: Article by Zhou et al. Spin-orbit coupling: A polaritonic molecule   p357 Noriaki Horiuchi doi:10.1038/nphoton.2015.88 Group IV photonics: Enabling 2 μm communications   pp358 - 359 Richard Soref doi:10.1038/nphoton.2015.87 High-speed 2 μm digital optical receivers are brought closer to reality by an extended-response foundry-made monolithic silicon-on-insulator avalanche photodiode. See also: Letter by Ackert et al. Optical isolators: Nonlinear dynamic reciprocity   pp359 - 361 Alexander B. Khanikaev and Andrea Alù doi:10.1038/nphoton.2015.86 Kerr optical nonlinearities are known to be well suited for achieving optical isolation, but the fact that the degree of non-reciprocity is signal-level dependent brings new opportunities as well as limitations. See also: Letter by Shi et al. Photonics JOBS of the week Post Doctoral Researcher in the Centre for Quantum Photonics University of Bristol Senior Level Faculty Position in Experimental Nano-Optics Georgia State University Post Doctoral Researcher in the Centre for Quantum Photonics University of Bristol PhD Student: Silicon Quantum Computation Australian Centre of Excellence for Quantum Computation & Communication Technology Senior Research Scientist / Scholar The Mortimer B. Zuckerman Mind Brain Behavior Institute More Science jobs from Photonics EVENT Workshop on Photonics: Fundamentals and Applications 27.08.15 Izmir, Turkey More science events from Review Top Coherent manipulation, measurement and entanglement of individual solid-state spins using optical fields   pp363 - 373 W. B. Gao, A. Imamoglu, H. Bernien and R. Hanson doi:10.1038/nphoton.2015.58 This Review covers recent advances in the implementation of spin-photon interfaces in semiconductor quantum dots, nitrogen–vacancy centres in diamond and emerging systems such as colour centres in other wide-bandgap materials. Letters Top Inverse design and demonstration of a compact and broadband on-chip wavelength demultiplexer   pp374 - 377 Alexander Y. Piggott, Jesse Lu, Konstantinos G. Lagoudakis, Jan Petykiewicz, Thomas M. Babinec et al. doi:10.1038/nphoton.2015.69 An on-chip integrated wavelength demultiplexer designed using an inverse computational algorithm is experimentally demonstrated. 1,300 and 1,550 nm wavelength light is sorted in a device area of just 2.8 × 2.8 µm2. See also: News and Views by Aydin An integrated-nanophotonics polarization beamsplitter with 2.4 × 2.4 µm2 footprint   pp378 - 382 Bing Shen, Peng Wang, Randy Polson and Rajesh Menon doi:10.1038/nphoton.2015.80 Researchers used an inverse design algorithm and experimentally demonstrated an integrated polarization beamsplitter with a footprint of 2.4 × 2.4 µm2. See also: News and Views by Aydin Synchronized pulses generated at 20 eV and 90 eV for attosecond pump–probe experiments   pp383 - 387 D. Fabris, T. Witting, W. A. Okell, D. J. Walke, P. Matia-Hernando et al. doi:10.1038/nphoton.2015.77 Researchers have synchronized XUV and VUV attosecond pulses simultaneously generated by high-harmonic generation. Such pulses with different photon energies may be useful for pump–probe experiments. Limitations of nonlinear optical isolators due to dynamic reciprocity   pp388 - 392 Yu Shi, Zongfu Yu and Shanhui Fan doi:10.1038/nphoton.2015.79 Researchers show that optical isolators based on nonlinearity cannot provide complete isolation for arbitrary backwards propagating noise, revealing limitations for their practical application. See also: News and Views by Khanikaev & Alù High-speed detection at two micrometres with monolithic silicon photodiodes   pp393 - 396 Jason J. Ackert, David J. Thomson, Li Shen, Anna C. Peacock, Paul E. Jessop et al. doi:10.1038/nphoton.2015.81 A silicon detector that is capable of long-wavelength photodetection at multi-gigabit per second data rates could prove useful for unlocking a new wavelength window for optical communications. See also: News and Views by Soref Articles Top High-rate measurement-device-independent quantum cryptography   pp397 - 402 Stefano Pirandola, Carlo Ottaviani, Gaetana Spedalieri, Christian Weedbrook, Samuel L. Braunstein et al. doi:10.1038/nphoton.2015.83 An end-to-end continuous-variable quantum key distribution system with an untrusted node is proposed. A proof-of-principle experiment shows that 10−1 secret key bits per relay use are distributed at 4 dB loss, corresponding to 20 km in optical fibre. Efficient inverted polymer solar cells employing favourable molecular orientation   pp403 - 408 Varun Vohra, Kazuaki Kawashima, Takeshi Kakara, Tomoyuki Koganezawa, Itaru Osaka et al. doi:10.1038/nphoton.2015.84 Molecular orientation in polymer solar cells is shown to play an important role in device performance. Thin-film Sb2Se3 photovoltaics with oriented one-dimensional ribbons and benign grain boundaries   pp409 - 415 Ying Zhou, Liang Wang, Shiyou Chen, Sikai Qin, Xinsheng Liu et al. doi:10.1038/nphoton.2015.78 Materials with a one-dimensional crystal structure, such as antimony selenide, show considerable potential for making efficient thin-film solar cells. See also: News and Views by Steinmann et al. Erratum Top Erratum: Interaction between light and highly confined hypersound in a silicon photonic nanowire   p416 Raphaël Van Laer, Bart Kuyken, Dries Van Thourhout and Roel Baets doi:10.1038/nphoton.2015.101 Top 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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