Table of contents



A new online tool for visualization of volumetric data p69

Marcus Fantham & Clemens F. Kaminski


The merits of plasmonic desalination p70

Jeffrey M. Gordon & Hui Tong Chua


See also: Correspondence by Zhou et al.

Reply to 'The merits of plasmonic desalination' pp70 - 71

Lin Zhou, Yingling Tan, Jingyang Wang, Weichao Xu, Ye Yuan, Wenshan Cai, Shining Zhu & Jia Zhu


See also: Correspondence by Gordon & Chua


News and Views

Fundamental optics: On-chip Casimir effect pp73 - 74

Kimball A. Milton


Measurement of the forces that arise from quantum vacuum fluctuations between closely spaced surfaces typically requires large apparatus, making applications difficult. Now, an experiment on a silicon chip to measure the Casimir force has been realized.

See also: Letter by Tang et al.

Materials optics: Lighting up antiferromagnets pp74 - 76

Peter M. Oppeneer


Weak coupling of light to the microscopic magnetic order in antiferromagnetic materials makes their optical characterization notoriously difficult. Now, a table-top magneto-optical technique has been developed for detecting the vector direction of antiparallel-aligned magnetic moments in a metallic antiferromagnet.

See also: Letter by Saidl et al.



Correction p76



News and Views

Metasurfaces: Efficient holograms p76

Oliver Graydon




Laser writing of coherent colour centres in diamond pp77 - 80

Yu-Chen Chen, Patrick S. Salter, Sebastian Knauer, Laiyi Weng, Angelo C. Frangeskou, Colin J. Stephen, Shazeaa N. Ishmael, Philip R. Dolan, Sam Johnson, Ben L. Green, Gavin W. Morley, Mark E. Newton, John G. Rarity, Martin J. Booth & Jason M. Smith


A negatively charged nitrogen–vacancy centre — a promising quantum light source — is created in diamond by laser writing (with pulses with a central wavelength of 790 nm and duration of 300 fs) with an accuracy of 200 nm in the transverse plane.

Demonstration of a self-pulsing photonic crystal Fano laser pp81 - 84

Yi Yu, Weiqi Xue, Elizaveta Semenova, Kresten Yvind & Jesper Mork


Fano interference and nonlinearity are exploited to achieve self-pulsing of a laser at gigahertz frequencies.

Solution-processed organic tandem solar cells with power conversion efficiencies >12% pp85 - 90

Miaomiao Li, Ke Gao, Xiangjian Wan, Qian Zhang, Bin Kan, Ruoxi Xia, Feng Liu, Xuan Yang, Huanran Feng, Wang Ni, Yunchuang Wang, Jiajun Peng, Hongtao Zhang, Ziqi Liang, Hin-Lap Yip, Xiaobin Peng, Yong Cao & Yongsheng Chen


Careful selection of small-molecule materials provides solution-processed tandem organic solar cells with a boost in efficiency.

Optical determination of the Néel vector in a CuMnAs thin-film antiferromagnet pp91 - 96

V. Saidl, P. Němec, P. Wadley, V. Hills, R. P. Campion, V. Novák, K. W. Edmonds, F. Maccherozzi, S. S. Dhesi, B. L. Gallagher, F. Trojánek, J. Kuneš, J. Železný, P. Malý & T. Jungwirth


Due to their nature antiferromagnets are difficult to probe with conventional magnetometers. The Néel vector of a practically important antiferromagnet, CuMnAs, has now been determined by a femtosecond pump–probe magneto-optical experiment.

See also: News and Views by Oppeneer

Measurement of non-monotonic Casimir forces between silicon nanostructures pp97 - 101

L. Tang, M. Wang, C. Y. Ng, M. Nikolic, C. T. Chan, A. W. Rodriguez & H. B. Chan


Previous demonstrations of the elusive Casimir force between interfaces exhibit monotonic dependence on surface displacement. Now a non-monotonic dependence of the force has been shown experimentally by exploting nanostructured surfaces.

See also: News and Views by Milton



Polarization domain walls in optical fibres as topological bits for data transmission pp102 - 107

M. Gilles, P.-Y. Bony, J. Garnier, A. Picozzi, M. Guasoni & J. Fatome


Localized polarization knots formed in conventional optical fibres are shown to be able to act as topological bits of information for optical data communication.

Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites pp108 - 115

Zhengguo Xiao, Ross A. Kerner, Lianfeng Zhao, Nhu L. Tran, Kyung Min Lee, Tae-Wook Koh, Gregory D. Scholes & Barry P. Rand


Perovskite nanocrystal LEDs featuring long-chain ammonium cations offer improved stability and efficiency.

Scattering compensation by focus scanning holographic aberration probing (F-SHARP) pp116 - 123

Ioannis N. Papadopoulos, Jean-Sébastien Jouhanneau, James F. A. Poulet & Benjamin Judkewitz


A non-invasive scattering compensation method, termed F-SHARP, gives direct access to the phase and amplitude of the electric-field point spread function, enabling fast and high-resolution correction of aberrations and scattering in living tissue.

A monolithic integrated photonic microwave filter pp124 - 129

Javier S. Fandiño, Pascual Muñoz, David Doménech & José Capmany


A tunable photonic microwave filter is monolithically integrated in an InP chip. The filter includes all of the required elements — a laser, a modulator and a photodetector — and its response can be tuned by controlling the electric currents.

Three-dimensional all-dielectric photonic topological insulator pp130 - 136

Alexey Slobozhanyuk, S. Hossein Mousavi, Xiang Ni, Daria Smirnova, Yuri S. Kivshar & Alexander B. Khanikaev


The theoretical study of a 3D photonic topological metacrystal based on an all-dielectric metamaterial platform shows robust propagation of surface states along 2D domain walls, making it a promising solution for photonics applications. The proposed metacrystal design might also open the way for the observation of elusive fundamental physical phenomena.



Erratum: Spin–orbit interactions of light p137

K. Y. Bliokh, F. J. Rodríguez-Fortuño, F. Nori & A. V. Zayats