Advance online publication


The latest research papers, published online ahead of print. These online versions are definitive and may be cited using the digital object identifier (DOI).

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27 February 2017

Article

Femtosecond-laser-driven wire-guided helical undulator for intense terahertz radiation

Ye Tian, Jiansheng Liu, Yafeng Bai, Shiyi Zhou, Haiyi Sun, Weiwei Liu, Jiayu Zhao, Ruxin Li & Zhizhan Xu

Published online: 27 February 2017 | doi:10.1038/nphoton.2017.16

Terahertz (THz) pulses are generated by irradiating a metal wire with femtosecond laser pulses. For incident laser energy of 3 mJ, a THz pulse with energy of 28 μJ is obtained from a 10-cm-long wire. The spectrum of the THz pulse covers 0.1–1.5 THz.


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20 February 2017

Articles

Highly efficient luminescent solar concentrators based on earth-abundant indirect-bandgap silicon quantum dots

Francesco Meinardi, Samantha Ehrenberg, Lorena Dhamo, Francesco Carulli, Michele Mauri, Francesco Bruni, Roberto Simonutti, Uwe Kortshagen & Sergio Brovelli

Published online: 20 February 2017 | doi:10.1038/nphoton.2017.5

Reabsorption losses in luminescent solar concentrators can be avoided by the use of indirect-bandgap semiconductor nanostructures. The technology has been used to demonstrate flexible luminescent solar concentrators with performance comparable to flat concentrators.


Charge-integrating organic heterojunction phototransistors for wide-dynamic-range image sensors

Adrien Pierre, Abhinav Gaikwad & Ana Claudia Arias

Published online: 20 February 2017 | doi:10.1038/nphoton.2017.15

A solution-processed organic phototransistor is operated at 100-frame-per-second rates with external quantum efficiencies above 100%. Dynamic range as high as 103 dB was shown for 30-frame-per-second operation.


Electric field-induced second-order nonlinear optical effects in silicon waveguides

E. Timurdogan, C. V. Poulton, M. J. Byrd & M. R. Watts

Published online: 20 February 2017 | doi:10.1038/nphoton.2017.14

The application of d.c. fields across p–i–n junctions in silicon ridge waveguides leads to crystal symmetry breaking. This induces a second-order optical nonlinear susceptibility that enables phase-only modulation and second-harmonic generation with an efficiency of ~13% W–1 at 2.29 µm.


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30 January 2017

Articles

Coherent backscattering of Raman light

Barbara Fazio, Alessia Irrera, Stefano Pirotta, Cristiano D'Andrea, Salvatore Del Sorbo, Maria Josè Lo Faro, Pietro Giuseppe Gucciardi, Maria Antonia Iatì, Rosalba Saija, Maddalena Patrini, Paolo Musumeci, Cirino Salvatore Vasi, Diederik S. Wiersma, Matteo Galli & Francesco Priolo

Published online: 30 January 2017 | 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.


Background suppression in fluorescence nanoscopy with stimulated emission double depletion

Peng Gao, Benedikt Prunsche, Lu Zhou, Karin Nienhaus & G. Ulrich Nienhaus

Published online: 30 January 2017 | 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.


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23 January 2017

Letter

Passively mode-locked laser with an ultra-narrow spectral width

Michael Kues, Christian Reimer, Benjamin Wetzel, Piotr Roztocki, Brent E. Little, Sai T. Chu, Tobias Hansson, Evgeny A. Viktorov, David J. Moss & Roberto Morandotti

Published online: 23 January 2017 | 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.


Article

Ultrahigh-definition dynamic 3D holographic display by active control of volume speckle fields

Hyeonseung Yu, KyeoReh Lee, Jongchan Park & YongKeun Park

Published online: 23 January 2017 | doi:10.1038/nphoton.2016.272

Control of speckle fields yields high-definition 3D holographic images.


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19 September 2016

News and Views

Quantum communications: Teleportation becomes streetwise

Frédéric Grosshans

Published online: 19 September 2016 | doi:10.1038/nphoton.2016.190

Quantum teleportation is at the heart of many quantum information protocols. Two teams have now performed it over several kilometres of metropolitan fibre networks, paving the way for future quantum technologies on the city scale.

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16 November 2015

Correspondence

Reply to 'Discrete and continuous variables for measurement-device-independent quantum cryptography'

Stefano Pirandola, Carlo Ottaviani, Gaetana Spedalieri, Christian Weedbrook, Samuel L. Braunstein, Seth Lloyd, Tobias Gehring, Christian S. Jacobsen & Ulrik L. Andersen

Published online: 16 November 2015 | doi:10.1038/nphoton.2015.207

See also: Correspondence by Xu et al.


Discrete and continuous variables for measurement-device-independent quantum cryptography

Feihu Xu, Marcos Curty, Bing Qi, Li Qian & Hoi-Kwong Lo

Published online: 16 November 2015 | doi:10.1038/nphoton.2015.206

See also: Correspondence by Pirandola et al.


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30 March 2015

Article

Compact nanomechanical plasmonic phase modulators

B. S. Dennis, M. I. Haftel, D. A. Czaplewski, D. Lopez, G. Blumberg & V. A. Aksyuk

Published online: 30 March 2015 | doi:10.1038/nphoton.2015.40

Researchers exploit the strong dependence of gap-plasmon phase velocity on gap width to make a compact phase-modulator. An electromechanically variable gap size enables a 23-μm-long non-resonant modulator with moderate losses.


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23 March 2015

News and Views

Organic emitters: Light-emitting fabrics

Enrique Ortí & Henk J. Bolink

Published online: 23 March 2015 | doi:10.1038/nphoton.2015.53

Light-emitting fibres that suit integration with textiles are prepared by dip-coating a steel wire with an electroluminescent material and then cleverly wrapping the structure with a carbon nanotube sheet that functions as a transparent electrode.


Articles

Ultrabright X-ray laser scattering for dynamic warm dense matter physics

L. B. Fletcher, H. J. Lee, T. Döppner, E. Galtier, B. Nagler, P. Heimann, C. Fortmann, S. LePape, T. Ma, M. Millot, A. Pak, D. Turnbull, D. A. Chapman, D. O. Gericke, J. Vorberger, T. White, G. Gregori, M. Wei, B. Barbrel, R. W. Falcone, C.-C. Kao, H. Nuhn, J. Welch, U. Zastrau, P. Neumayer, J. B. Hastings & S. H. Glenzer

Published online: 23 March 2015 | doi:10.1038/nphoton.2015.41

Warm dense matter (WDM), which falls in the category between plasmas and condensed matter, is expected to exist in planetary interiors. Now, researchers use an X-ray laser to observe the transition to WDM.


High-efficiency light-emitting devices based on quantum dots with tailored nanostructures

Yixing Yang, Ying Zheng, Weiran Cao, Alexandre Titov, Jake Hyvonen, Jesse R. Manders, Jiangeng Xue, Paul H. Holloway & Lei Qian

Published online: 23 March 2015 | doi:10.1038/nphoton.2015.36

Bright, efficient red, green and blue quantum-dot LEDs are realized by customizing the nanostructure of the quantum dots.


A colour-tunable, weavable fibre-shaped polymer light-emitting electrochemical cell

Zhitao Zhang, Kunping Guo, Yiming Li, Xueyi Li, Guozhen Guan, Houpu Li, Yongfeng Luo, Fangyuan Zhao, Qi Zhang, Bin Wei, Qibing Pei & Huisheng Peng

Published online: 23 March 2015 | doi:10.1038/nphoton.2015.37

A fibre-shaped light emitting electrochemical cell that can be woven and integrated with textiles offers new opportunities for smart fabrics.

See also: News and Views by Ortí & Bolink


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09 March 2015

Article

Imaging deep within a scattering medium using collective accumulation of single-scattered waves

Sungsam Kang, Seungwon Jeong, Wonjun Choi, Hakseok Ko, Taeseok D. Yang, Jang Ho Joo, Jae-Seung Lee, Yong-Sik Lim, Q-Han Park & Wonshik Choi

Published online: 09 March 2015 | doi:10.1038/nphoton.2015.24

Using the collective accumulation of single-scattered waves, scientists manage to image deep within a scattering medium, achieving an imaging depth 11.5 times the scattering mean free path and a near-diffraction-limit resolution of 1.5 µm.


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02 March 2015

Letter

Subwavelength anti-diffracting beams propagating over more than 1,000 Rayleigh lengths

Eugenio DelRe, Fabrizio Di Mei, Jacopo Parravicini, Gianbattista Parravicini, Aharon J. Agranat & Claudio Conti

Published online: 02 March 2015 | doi:10.1038/nphoton.2015.21

Researchers take advantage of the nonlinear response of a dipolar glass and observe non-paraxial propagation of a sub-micrometre-sized beam over 103 diffraction lengths.


Articles

Deep in vivo photoacoustic imaging of mammalian tissues using a tyrosinase-based genetic reporter

Amit P. Jathoul, Jan Laufer, Olumide Ogunlade, Bradley Treeby, Ben Cox, Edward Zhang, Peter Johnson, Arnold R. Pizzey, Brian Philip, Teresa Marafioti, Mark F. Lythgoe, R. Barbara Pedley, Martin A. Pule & Paul Beard

Published online: 02 March 2015 | doi:10.1038/nphoton.2015.22

Deep photoacoustic imaging of mammalian cells featuring genetically encoded contrast is reported.


Waveguide-integrated black phosphorus photodetector with high responsivity and low dark current

Nathan Youngblood, Che Chen, Steven J. Koester & Mo Li

Published online: 02 March 2015 | doi:10.1038/nphoton.2015.23

A gated multilayer black phosphorus photodetector integrated on a silicon photonic waveguide operating in the telecom band is demonstrated with intrinsic responsivity up to 135 mA W−1 and 657 mA W−1 in 11.5-nm- and 100-nm-thick devices, respectively.


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16 February 2015

News and Views

Silicon nanophotonics: Good vibrations for light

Luc Thévenaz

Published online: 16 February 2015 | doi:10.1038/nphoton.2015.28

Large light–sound interaction in nanoscale silicon wires is experimentally demonstrated, making integrated nonlinear optical devices a reality.


Until print versions of AOP papers are published, they should be cited in the style "Author(s) Nature Photonics advance online publication, day month year (doi:10.1038/nphotonXXXXX)". Once the print version (identical to the AOP) is published, it should be cited as follows: "Author(s) Nature Photonics volume, page (year); advance online publication, (doi:10.1038/nphotonXXXXX)".

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