Laser & Photonics Reviews

Cover image for Vol. 9 Issue 3

Early View (Online Version of Record published before inclusion in an issue)

Editor: Katja Paff

Impact Factor: 8.008

ISI Journal Citation Reports © Ranking: 2014: 4/86 (Optics); 10/143 (Physics Applied); 10/67 (Physics Condensed Matter)

Online ISSN: 1863-8899

Associated Title(s): Advanced Optical Materials, Journal of Biophotonics


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  1. Original Papers

    1. Giant two-photon absorption in monolayer MoS2

      Yuanxin Li, Ningning Dong, Saifeng Zhang, Xiaoyan Zhang, Yanyan Feng, Kangpeng Wang, Long Zhang and Jun Wang

      Article first published online: 30 JUN 2015 | DOI: 10.1002/lpor.201500052

      Thumbnail image of graphical abstract

      Remarkable TPA and two-photon pumped photoluminescence in pristine monolayer MoS2 grown by CVD are demonstrated, which is entirely distinct from the SA response in multilayer in the NIR. The giant TPA coefficient implies that monolayer MoS2 is a potential 2D semiconductor for photonic applications, such as optical limiters, optical beam shapers, etc.

    2. Polarization-free directional coupling of surface plasmon polaritons

      Jianjun Chen, Chengwei Sun, Kexiu Rong, Hongyun Li and Qihuang Gong

      Article first published online: 25 JUN 2015 | DOI: 10.1002/lpor.201500048

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      By fabricating an ultrasmall defect aperture in a subwavelength plasmonic waveguide experimentally, the surface-plasmon-polariton (SPP) mode guided by the plasmonic waveguide was directionally coupled from both of the p- and s-polarized incident beams in a broad bandwidth. This completely overcame the polarization dependence of the SPP coupling from the free-space light. Such a polarization-free SPP coupler is of importance in circuits for fully optical processing of information with a deep-subwavelength footprint.

    3. High-transmission dielectric metasurface with 2π phase control at visible wavelengths

      Ye Feng Yu, Alexander Y. Zhu, Ramón Paniagua-Domínguez, Yuan Hsing Fu, Boris Luk'yanchuk and Arseniy I. Kuznetsov

      Article first published online: 25 JUN 2015 | DOI: 10.1002/lpor.201500041

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      An all-dielectric metasurface comprising of silicon nanodisks is shown to possess close-to-unity transmission in the visible spectrum. It is capable of manipulating the amplitude, phase and polarization of light to arbitrary specifications; here a beam deflection with around 45% peak efficiency is demonstrated. These values and CMOS compatible fabrication process make this approach promising for further development of flat optical devices.

    4. Topologically protected interface mode in plasmonic waveguide arrays

      Qingqing Cheng, Yiming Pan, Qianjin Wang, Tao Li and Shining Zhu

      Article first published online: 18 JUN 2015 | DOI: 10.1002/lpor.201400462

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      Based on the Su–Schriffer–Heeger model, a topologically protected optical mode was successfully demonstrated in a plasmonic waveguide array with a robust nonspreading feature. It is revealed that this robust interface mode only exists in the kinked structure in a realistic excitation of one-waveguide input, although their eigenmodes are both topologically protected. The excitation condition and eigenmode symmetry are found to play crucial roles in determining field propagation behaviors.

    5. Phase-preserved macroscopic visible-light carpet cloaking beyond two dimensions

      Chia-Wei Chu, Xiaomin Zhai, Chih Jie Lee, Po-Hao Wang, Yubo Duan, Din Ping Tsai, Baile Zhang and Yuan Luo

      Article first published online: 17 JUN 2015 | DOI: 10.1002/lpor.201500020

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      Optical phase cloaking is demonstrated with an almost-three-dimensional carpet cloak designed from transformation optics. Both ray trajectories and optical path lengths have been measured at the macroscopic scale. The optical path lengths are determined with a broadband pulsed laser interferometer. This study provides, from the viewpoint of optical phase, unique experimental evidence on the geometrical nature of macroscopic cloaking.

  2. Letter Articles

    1. Transfer printing of fully formed thin-film microscale GaAs lasers on silicon with a thermally conductive interface material

      Xing Sheng, Cedric Robert, Shuodao Wang, Grace Pakeltis, Brian Corbett and John A. Rogers

      Article first published online: 29 MAY 2015 | DOI: 10.1002/lpor.201500016

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      Fully formed thin-film microscale GaAs based lasers are integrated onto silicon substrates using a transfer printing method. An indium-silver alloy based adhesive layer serves as a thermally conductive interface. Experimental and numerical results demonstrate enhanced lasing performance due to advanced thermal management. The device integration strategies provide routes to on-chip light sources for silicon photonics.

  3. Original Papers

    1. Enhanced emission extraction and selective excitation of NV centers with all–dielectric nanoantennas

      Alexander E. Krasnok, Alex Maloshtan, Dmitry N. Chigrin, Yuri S. Kivshar and Pavel A. Belov

      Article first published online: 29 MAY 2015 | DOI: 10.1002/lpor.201400453

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      A novel approach to facilitate excitation and readout processes of isolated negatively charged nitrogen-vacancy (NV) centers is proposed. The approach is based on the concept of all-dielectric nanoantennas. It is shown that the all-dielectric nanoantenna can significantly enhance both the emission rate and emission extraction efficiency of a photoluminescence signal from a single NV center in a diamond nanoparticle on a dielectric substrate. The proposed approach provides high directivity, large Purcell factor, and efficient beam steering, thus allowing an efficient far-field initialization and readout of several NV centers separated by subwavelength distances.


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