Scrutinizing lasers p139 doi:10.1038/nphoton.2017.28 Lasers play a pivotal role in photonics, but claims of lasing are not always as robust and informative as they should be. A new trial policy at Nature Photonics aims to rectify this shortcoming.
Luminescent solar concentrators: Semiconductor solution pp143 - 144 Michael Debije doi:10.1038/nphoton.2017.20 Reabsorption losses have long been holding back the commercial viability of luminescent solar concentrators. Now, non-toxic silicon-based quantum dots with enhanced Stokes shift may enable the technology to enjoy practical implementation.
Light scattering: Raman shines back pp144 - 146 Sergey E. Skipetrov doi:10.1038/nphoton.2017.18 Coherent backscattering experiments indicate that spontaneous Raman scattering is a coherent process that can lead to macroscopically observable interference phenomena in disordered solid-state samples.
Near-zero refractive index photonics pp149 - 158 Iñigo Liberal & Nader Engheta doi:10.1038/nphoton.2017.13 The underlying principles and unique optical applications of structures exhibiting near-zero dielectric permittivity and/or magnetic permeability are reviewed. The timely relevance to nonlinear, non-reciprocal and non-local effects is highlighted.
Passively mode-locked laser with an ultra-narrow spectral width pp159 - 162 Michael Kues, Christian Reimer, Benjamin Wetzel, Piotr Roztocki, Brent E. Little et al. doi:10.1038/nphoton.2016.271 A passively mode-locked laser system featuring cavity filtering and cavity-enhanced nonlinear interactions within an integrated microring resonator produces nanosecond optical pulses with a spectral width of 104.9 MHz.
Background suppression in fluorescence nanoscopy with stimulated emission double depletion pp163 - 169 Peng Gao, Benedikt Prunsche, Lu Zhou, Karin Nienhaus and G. Ulrich Nienhaus doi:10.1038/nphoton.2016.279 Stimulated emission double depletion addresses the issue of background in super-resolution imaging and quantitative microscopy through implementation of a two-pulse sequence in a modified stimulated emission depletion set-up. The measured background intensity is removed from each voxel in the acquired images thanks to time-resolved detection.
Coherent backscattering of Raman light pp170 - 176 Barbara Fazio, Alessia Irrera, Stefano Pirotta, Cristiano D'Andrea, Salvatore Del Sorbo et al. doi:10.1038/nphoton.2016.278 Constructive interference is observed in the inelastically backscattered Raman radiation from nanostructured media. The effect is studied at a macroscopic scale and is explained in the context of Rayleigh–Raman random walks inside strongly scattering materials.
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 firstname.lastname@example.org
You have been sent this Table of Contents Alert because you have opted in to receive it. You can change or discontinue your e-mail alerts at any time, by modifying your preferences on your nature.com account at: www.nature.com/myaccount (You will need to log in to be recognised as a nature.com registrant)