Laser & Photonics Reviews

Cover image for Vol. 9 Issue 4

July 2015

Volume 9, Issue 4

Pages A27–A36, 363–434, L17–L28, i–ii

  1. Front Cover

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Front Cover: Laser written circuits for quantum photonics (Laser Photonics Rev. 9(4)/2015)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570045

      Thumbnail image of graphical abstract

      Direct inscription of waveguides using ultrashort laser pulses allows for arbitrary three-dimensional optics circuits, bringing unmatched design freedom to the field of on-chip quantum photonics. The laser inscription technique allows rapid prototyping of a range of unique photonic circuits by simply translating a laser focus through a glass sample. In this review a detailed background of the applications of laser inscribed circuits to quantum photonics is provided with an emphasis on the novel designs permitted using this unique fabrication technique.

      (Picture: Thomas Meany et al.,10.1002/lpor.201500061 pp. 363–384, in this issue)

  2. Inside Front Cover

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Inside Front Cover: Polarization-free directional coupling of surface plasmon polaritons (Laser Photonics Rev. 9(4)/2015)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570046

      Thumbnail image of graphical abstract

      By fabricating an ultra-small 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.

      (Picture: Jianjun Chen et al.,10.1002/lpor.201500048 pp. 419–426, in this issue)

  3. Inside Back Cover

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Inside Back Cover: Giant two-photon absorption in monolayer MoS2 (Laser Photonics Rev. 9(4)/2015)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570047

      Thumbnail image of graphical abstract

      The MoS2 monolayer and few-layer show entirely distinct nonlinear absorption modulations for the ultrashort pulses at near infrared region. Unlike the general idea that the thick (optical) substance blocks more light while the thinner substance blocks less, the layered MoS2 works in an opposite way – the thick (few-layer) MoS2 allows light transmit (i.e., saturable absorption), while the thinnest (monolayer) MoS2 absorbs more light (two-photon absorption).

      (Picture: Yuanxin Li et al.,10.1002/lpor.201500052 pp. 427–434, in this issue)

  4. Back Cover

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Back Cover: Transfer printing of fully formed thin-film microscale GaAs lasers on silicon with a thermally conductive interface material (Laser Photonics Rev. 9(4)/2015)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570048

      Thumbnail image of graphical abstract

      Fully fabricated thin-film microscale GaAs based lasers are integrated onto silicon substrates using a transfer printing method. An indium-silver based alloy serves as a thermally conductive bonding interface between the lasers and the silicon, for enhanced performance. Such devices exhibit continuous-wave lasing in the near-infrared range under electrical pumping.

      (Picture: Xing Sheng et al.,10.1002/lpor.201500016 pp. L17–L22, in this issue)

  5. LPR Call for Paper

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      LPR Call For Paper: Laser & Photon. Rev. 9(4)/2015 (page A27)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570043

  6. Editorial Advisory Board

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
  7. Contents

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Contents: Laser & Photon. Rev. 9(4)/2015 (pages A29–A34)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570040

  8. Retrospect

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Retrospect: Laser & Photon. Rev. 9(4)/2015 (pages A35–A36)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570041

  9. Review Articles

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Laser written circuits for quantum photonics (pages 363–384)

      Thomas Meany, Markus Gräfe, René Heilmann, Armando Perez-Leija, Simon Gross, Michael J. Steel, Michael J. Withford and Alexander Szameit

      Article first published online: 21 JUL 2015 | DOI: 10.1002/lpor.201500061

      Thumbnail image of graphical abstract

      The femtosecond laser direct-writing (FLDW) of waveguide circuits in glasses has seen interest from a number of fields over the previous 20 years. It has evolved from a curiosity to a viable platform for the rapid prototyping of small scale circuits. The field of quantum information science has exploited this capability and in the process advanced the fabrication technique. In this review the technological aspects of the laser inscription method relevant to quantum information science will be discussed. A range of demonstrations which have been enabled by laser written circuits will be outlined; these include novel circuits, simulations, photon sources and detection. This places the FLDW technique among the few integrated optical platforms to have produced individually every component required for scalable quantum computation.

  10. Original Papers

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. Enhanced emission extraction and selective excitation of NV centers with all–dielectric nanoantennas (pages 385–391)

      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

      Thumbnail image of graphical abstract

      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.

    2. Topologically protected interface mode in plasmonic waveguide arrays (pages 392–398)

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

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

      Thumbnail image of graphical abstract

      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.

    3. Phase-preserved macroscopic visible-light carpet cloaking beyond two dimensions (pages 399–404)

      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

      Thumbnail image of graphical abstract

      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.

    4. Efficient Raman frequency conversion of high-power fiber lasers in diamond (pages 405–411)

      Robert J. Williams, Johannes Nold, Maximilian Strecker, Ondrej Kitzler, Aaron McKay, Thomas Schreiber and Richard P. Mildren

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201500032

      Thumbnail image of graphical abstract

      Diamond is used for Raman beam conversion of a 700 W Yb fiber laser, achieving record conversion efficiency (>60%) and output power (380 W). High beam quality and efficient conversion at high powers—in stark contrast to predictions for the thermal lens and cavity stability—challenge the current understanding of heat deposition in diamond Raman lasers. Experimental evidence for stimulated Brillouin scattering in diamond is reported.

    5. High-transmission dielectric metasurface with 2π phase control at visible wavelengths (pages 412–418)

      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

      Thumbnail image of graphical abstract

      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.

    6. Polarization-free directional coupling of surface plasmon polaritons (pages 419–426)

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

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

      Thumbnail image of graphical abstract

      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.

    7. Giant two-photon absorption in monolayer MoS2 (pages 427–434)

      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.

  11. Letters

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. Transfer printing of fully formed thin-film microscale GaAs lasers on silicon with a thermally conductive interface material (pages L17–L22)

      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

      Thumbnail image of graphical abstract

      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.

    2. Normal-dispersion microcombs enabled by controllable mode interactions (pages L23–L28)

      Xiaoxiao Xue, Yi Xuan, Pei-Hsun Wang, Yang Liu, Dan E. Leaird, Minghao Qi and Andrew M. Weiner

      Article first published online: 14 JUL 2015 | DOI: 10.1002/lpor.201500107

      Thumbnail image of graphical abstract

      Microcomb generation, repetition rate selection, and mode locking are achieved with coupled silicon nitride microrings constructed from single-mode waveguides. Mode interactions are controlled via an on-chip microheater for reliable microcomb initiation. The proposed scheme shows for the first time a reliable design strategy for normal-dispersion microcomb generation and may make it possible to generate microcombs in an extended wavelength range (e.g. in the visible) where material dispersion is likely to dominate.

  12. Issue Information

    1. Top of page
    2. Front Cover
    3. Inside Front Cover
    4. Inside Back Cover
    5. Back Cover
    6. LPR Call for Paper
    7. Editorial Advisory Board
    8. Contents
    9. Retrospect
    10. Review Articles
    11. Original Papers
    12. Letters
    13. Issue Information
    1. You have free access to this content
      Issue Information: Laser & Photon. Rev. 9(4)/2015 (pages i–ii)

      Article first published online: 24 JUL 2015 | DOI: 10.1002/lpor.201570042

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