Nature Photonics contents December 2011 Volume 5 Number 12 pp711-778

Advertisement NPG Asia Materials - Monthly reviews by leading materials researchers from the Asia-Pacific region Latest review: Metamaterials and metaoptics Full list of reviews Recent highlights: Photonic crystals: Laser action squeezed out | Photonics: Graphene's optical limitation Call for papers NPG Asia Materials is now accepting submissions of original research articles for 2012 TABLE OF CONTENTS December 2011 Volume 5, Issue 12 Editorial Research Highlights News and Views Technology Focus Letters Articles Interview Recommend to your library Web feed Subscribe Advertisement Submit your next paper to Nature Photonics The Nature Photonics editorial team welcomes contributions from academic, industrial and government sectors across all areas of photonics and optoelectronics. For the Guide to Authors and online submission details click here.   Editorial Top The importance of accessibility p711 doi:10.1038/nphoton.2011.319 The ability to communicate research results to a non-specialist audience in a clear and concise manner is a skill that should not be overlooked. Full Text | PDF Research Highlights Top Complex media: Repolarization | Optical memory: Rephasing stored light | Optoelectronics: Blue-violet reflectors | Solar cells: Benefit of strain | Terahertz photonics: Nanowire emitters | Waveguides: Liquid flexibility | Liquid crystals: Light-driven colour change | Optomechanics: Ultimate cooling | Semiconductor lasers: Green power boost News and Views Top Light-emitting diodes: Solid-state lighting on glass pp714 - 715 Nicolas Grandjean and Raphael Butte doi:10.1038/nphoton.2011.298 The ability to fabricate an array of GaN light emitters on an amorphous glass substrate could lead to significant improvements in the scalability and cost of blue and white LED technology. Full Text | PDF See also: Article by Choi et al. Solid-state lasers: The Airy beam laser p715 Rachel Won doi:10.1038/nphoton.2011.289 Full Text | PDF Terahertz optics: Shaping single-crystal silicon p716 David Pile doi:10.1038/nphoton.2011.294 Full Text | PDF Organic light-emitting diodes: Efficient and flexible solution pp716 - 718 Karl Leo doi:10.1038/nphoton.2011.288 Researchers have developed flexible thin-film OLEDs that exhibit high efficiencies at green wavelengths without the use of a high-refractive-index substrate. Full Text | PDF See also: Letter by Wang et al. View from... Group IV Photonics: Hope from hybrids pp718 - 719 Oliver Graydon doi:10.1038/nphoton.2011.315 The ease at which group III-V semiconductors can now be integrated with silicon suggests that the need for a pure silicon laser is rapidly fading. Full Text | PDF Photonics JOBS of the week Postdoctoral Associate University of California, Berkeley Postdoctoral position: Development of a Phonon Spectrometer Cornell University Research Group Leader / Postdoc University Medical Center Göttingen Industrial Partnership PhD Scholarship on Gene Expression Technology University of Glasgow and UCB Pharma Scientific Assistant / Ph.D. Student: Life Science Informatics Rheinische Friedrich-Wilhelms-University Bonn More Science jobs from Photonics EVENT 12th International Multidisciplinary Scientific GeoConference & EXPO SGEM2012 17.-23.06.12 Bulgaria More science events from TECHNOLOGY FOCUS:  Microwave photonics The fortuitous combination of maturing capabilities, falling component prices and rising demand bodes well for the future of microwave photonics and radio-over-fibre technologies, according to opinions gathered in this month's Technology Focus on the topic. Editorial Top Long live radio p723 doi:10.1038/nphoton.2011.316 | Full Text | PDF Business News Top Wireless future drives microwave photonics p724 doi:10.1038/nphoton.2011.292 | Full Text | PDF Research Highlights Top On-chip signal processing  | Comb-based pulse shaping  | Scaling down frequency  | Waveform mathematics  | Ultralow phase noise  Profile Top Covering all bases pp726 - 727 Nadya Anscombe doi:10.1038/nphoton.2011.284 The popularity and demand for data-rich wireless communication is driving the deployment of radio-over-fibre technology and the success of the firms such as Zinwave, reports Nadya Anscombe. | Full Text | PDF Industry Perspectives Top Sources: The optoelectronic oscillator pp728 - 730 Lute Maleki doi:10.1038/nphoton.2011.293 Photonic technology can now be used to construct miniature sources of high-frequency radio waves that have exceptional spectral purity. | Full Text | PDF Microwave photonics: Harnessing slow light pp731 - 733 Jose Capmany, Ivana Gasulla and Salvador Sales doi:10.1038/nphoton.2011.290 Slow-light techniques originally conceived for buffering high-speed digital optical signals now look set to play an important role in providing broadband phase and true time delays for microwave signals. | Full Text | PDF Product Highlights Top Compact devices, optical phase-locked loops and more p735 doi:10.1038/nphoton.2011.291 | Full Text | PDF Interview Top Microwave photonics shines p736 Rachel Won doi:10.1038/nphoton.2011.314 The combination of microwave photonics and optics has advanced many applications in defence, wireless communications, imaging and network infrastructure. Rachel Won talks to Jianping Yao from the University of Ottawa in Canada about the importance of this growing field. | Full Text | PDF Letters Top Enhanced single-photon emission from a diamond-silver aperture pp738 - 743 Jennifer T. Choy, Birgit J. M. Hausmann, Thomas M. Babinec, Irfan Bulu, Mughees Khan, Patrick Maletinsky, Amir Yacoby and Marko Loncar doi:10.1038/nphoton.2011.249 Directly embedding single nitrogen-vacancy centres into ordered arrays of plasmonic nanostructures can enhance their radiative emission rate and thus give greater scalability over previous bottom-up approaches for the realization of on-chip quantum networks. Abstract | Full Text | PDF Molecular imaging true-colour spectroscopic optical coherence tomography pp744 - 747 Francisco E. Robles, Christy Wilson, Gerald Grant and Adam Wax doi:10.1038/nphoton.2011.257 Using a new form of spectroscopic optical coherence tomography, researchers demonstrate three-dimensional molecular imaging of both endogenous and exogenous chromophores with high spectral fidelity. This scheme has significant implications for a range of biomedical applications, including ophthalmology, early cancer detection and understanding fundamental disease mechanisms such as hypoxia and angiogenesis. Abstract | Full Text | PDF Multilevel quantization of optical phase in a novel coherent parametric mixer architecture pp748 - 752 Joseph Kakande, Radan Slavik, Francesca Parmigiani, Adonis Bogris, Dimitris Syvridis, Lars Gruner-Nielsen, Richard Phelan, Periklis Petropoulos and David J. Richardson doi:10.1038/nphoton.2011.254 Researchers report an all-optical signal processing architecture that enables the multilevel all-optical quantization of phase-encoded optical signals. Using four-wave-mixing and two-pump parametric processes, they experimentally demonstrate up to six levels of quantization. Abstract | Full Text | PDF Unlocking the full potential of organic light-emitting diodes on flexible plastic pp753 - 757 Z. B. Wang, M. G. Helander, J. Qiu, D. P. Puzzo, M. T. Greiner, Z. M. Hudson, S. Wang, Z. W. Liu and Z. H. Lu doi:10.1038/nphoton.2011.259 Using a thin-film outcoupling enhancement method consisting of a weak optical cavity on a flexible substrate with a non-indium-tin-oxide anode, researchers demonstrate phosphorescent organic LEDs with an external quantum efficiency of up to 63% at green wavelengths, which remains as high as 60% at luminous intensities of >10,000 cd m-2. Abstract | Full Text | PDF See also: News and Views by Leo On-chip optical isolation in monolithically integrated non-reciprocal optical resonators pp758 - 762 Lei Bi, Juejun Hu, Peng Jiang, Dong Hun Kim, Gerald F. Dionne, Lionel C. Kimerling and C. A. Ross doi:10.1038/nphoton.2011.270 Scientists report the fabrication of a nonreciprocal optical resonator with a small length footprint of 290 μm on a silicon-on-insulator substrate. The device achieves unidirectional optical transmission with an isolation ratio of up to 19.5 dB near the telecommunications wavelength of 1,550 nm in a homogeneous external magnetic field. Abstract | Full Text | PDF Articles Top Nearly single-crystalline GaN light-emitting diodes on amorphous glass substrates pp763 - 769 Jun Hee Choi, Andrei Zoulkarneev, Sun Il Kim, Chan Wook Baik, Min Ho Yang, Sung Soo Park, Hwansoo Suh, Un Jeong Kim, Hyung Bin Son, Jae Soong Lee, Miyoung Kim, Jong Min Kim and Kinam Kim doi:10.1038/nphoton.2011.253 Researchers use a pre-orienting layer to achieve nearly single-crystalline GaN pyramidal arrays on amorphous glass substrates. The polycrystalline morphology can be controlled by placing a hole-patterned SiO2 layer on the low-temperature GaN nucleation layer. Light-emitting diodes fabricated by this technique exhibited a luminance of 600 cd m-2. Abstract | Full Text | PDF See also: News and Views by Grandjean & Butte | Interview with Jun Hee Choi Spectral line-by-line pulse shaping of on-chip microresonator frequency combs pp770 - 776 Fahmida Ferdous, Houxun Miao, Daniel E. Leaird, Kartik Srinivasan, Jian Wang, Lei Chen, Leo Tom Varghese and Andrew M. Weiner doi:10.1038/nphoton.2011.255 Researcher demonstrate the line-by-line pulse shaping of frequency combs generated in silicon nitride ring resonators, and observe two distinct paths to comb formation that exhibit strikingly different time domain behaviours. Abstract | Full Text | PDF Interview Top GaN-on-glass success p778 Interview with Jun Hee Choi doi:10.1038/nphoton.2011.295 The successful growth of GaN-based LEDs on amorphous glass avoids the size and cost limitations of a sapphire substrate, says Jun Hee Choi from the Samsung Advanced Institute of Technology in South Korea. Full Text | PDF Top Advertisement NPG Asia Materials presenting monthly reviews by leading materials researchers from the Asia-Pacific region, will soon be transformed into an open access research journal in January 2012. Find out more and make sure you receive the latest research by registering e-mail Table of Contents alert for NPG Asia 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 natureevents@nature.com More Nature Events

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) For further technical assistance, please contact our registration department For print subscription enquiries, please contact our subscription department For other enquiries, please contact our customer feedback department Nature Publishing Group | 75 Varick Street, 9th Floor | New York | NY 10013-1917 | USA Nature Publishing Group's worldwide offices: London - Paris - Munich - New Delhi - Tokyo - Melbourne San Diego - San Francisco - Washington - New York - Boston Macmillan Publishers Limited is a company incorporated in England and Wales under company number 785998 and whose registered office is located at Brunel Road, Houndmills, Basingstoke, Hampshire RG21 6XS. © 2011 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.