Laser & Photonics Reviews

Cover image for Vol. 9 Issue 1

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

Editor: Katja Paff

Impact Factor: 9.313

ISI Journal Citation Reports © Ranking: 2013: 3/83 (Optics); 9/67 (Physics Condensed Matter); 10/136 (Physics Applied)

Online ISSN: 1863-8899

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

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  1. 1 - 9
  1. Letter Articles

    1. Ultra-fast heralded single photon source based on telecom technology

      Lutfi Arif Ngah, Olivier Alibart, Laurent Labonté, Virginia D'Auria and Sébastien Tanzilli

      Article first published online: 20 FEB 2015 | DOI: 10.1002/lpor.201400404

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      The realization of an ultra-fast source of heralded single photons emitted at the wavelength of 1540 nm is reported. The presented strategy is based on state-of-the-art telecom technology, combined with off-the-shelf fiber components and waveguide non-linear stages pumped by a 10 GHz repetition rate laser. The single photons are heralded at a rate as high as 2.1 MHz with a heralding efficiency of 42%. Single-photon character of the source is inferred by measuring the second-order autocorrelation function. For the highest heralding rate, a value as low as 0.023 is found. This not only proves negligible multi-photon contributions but also represents one of the best measured values reported to date for heralding rates in the MHz regime. These performances, associated with a device-like configuration, are key ingredients for both fast and secure quantum communication protocols.

  2. Original Papers

    1. Electro-optical interferometric microscopy of periodic and aperiodic ferroelectric structures

      Duc Thien Trinh, Vasyl Shynkar, Ady Arie, Yan Sheng, Wieslaw Krolikowski and Joseph Zyss

      Article first published online: 19 FEB 2015 | DOI: 10.1002/lpor.201400122

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      The ferroelectric domain structure of 1D periodically poled KTiOPO4 and 2D short-range ordered poled LiNbO3 crystals are probed non-invasively by interferometric microscopy measurements of the electro-optically induced phase retardation with diffraction limited spatial resolution. The nonlinear and electro-optic modulation patterns of these crystals are revealed in a non-destructive manner, together with their poling period, duty cycle, and short-range order, while local defects inside the domain structure can be detected.

    2. Nanoscopically resolved dynamic charge-carrier distribution in operating interband cascade lasers

      Rudra S. Dhar, Lu Li, Hao Ye, Seyed G. Razavipour, Xueren Wang, Rui Q. Yang and Dayan Ban

      Article first published online: 13 FEB 2015 | DOI: 10.1002/lpor.201400143

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      Gain-providing charge carrier distribution in a lasing interband cascade laser is quantitatively measured at nanometer scales by using non-invasive scanning voltage microscopy technique. Experimental results clearly confirm the accumulation and spatial segregation of holes and electrons in the multiple quantum-well active region of the device. The experimental approach could lead to an in-depth understanding of fundamental processes that govern the operation and performance of nanoelectronic, quantum and optoelectronic devices.

    3. Plasmonic leaky-mode lasing in active semiconductor nanowires

      Sebastian Wuestner, Joachim M. Hamm, Andreas Pusch and Ortwin Hess

      Article first published online: 11 FEB 2015 | DOI: 10.1002/lpor.201400231

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      In photonic nanowire lasers, leaky modes compete with almost lossless above-cutoff modes, usually preventing leaky modes from crossing their lasing threshold. The situation is drastically different in plasmonic nanowire systems where the above-cutoff plasmonic modes are very lossy. Leaky-mode lasing is facilitated for small wire diameters as the threshold gain of the hybrid electric leaky mode remains almost constant with reduced wire diameter due to gain guiding.

  3. Review Articles

    1. Review and perspective on ultrafast wavelength-size electro-optic modulators

      Ke Liu, Chen Ran Ye, Sikandar Khan and Volker J. Sorger

      Article first published online: 10 FEB 2015 | DOI: 10.1002/lpor.201400219

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      The performances of electro-optic modulators (EOM) is determined by the interaction strength between light and matter. Here, EOMs based on sub-diffraction-limited optical modes are summarized and discussed. These devices show performance metrics that are able to surpass classical device limits through (a) optical field enhancements, (b) low-Q resonators and (c) synergistic integration schemes including emerging materials for strong index modulation.

  4. Original Papers

    1. Spectrally resolved resonant propulsion of dielectric microspheres

      Yangcheng Li, Alexey V. Maslov, Nicholaos I. Limberopoulos, Augustine M. Urbas and Vasily N. Astratov

      Article first published online: 10 FEB 2015 | DOI: 10.1002/lpor.201400237

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      The optical propulsion of polystyrene microspheres is studied in tapered microfiber couplers in both spectral and time domains simultaneously. By tuning the wavelength of the guided mode, it is shown that the spectral shape, position and magnitude of the observed propelling force peaks are explained by efficient light-momentum transfer to microspheres under resonance with their whispering-gallery modes. The stable radial trap for the moving microspheres is demonstrated.

    2. Linear readout of integrated interferometric biosensors using a periodic wavelength modulation

      Stefania Dante, Daphné Duval, David Fariña, Ana Belén González-Guerrero and Laura M. Lechuga

      Article first published online: 5 FEB 2015 | DOI: 10.1002/lpor.201400216

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      To solve the ambiguities affecting interferometric biosensors, a phase modulation system based on variations of the incident wavelength and Fourier deconvolution is presented. The wavelength variation is introduced taking advantage of the power-wavelength dependence of commercial laser diodes, resulting in a cost-effective method, valid for all modal interferometers. Considering the modulation of a bimodal waveguide interferometric sensor, limits of detection of 4 · 10−7 for bulk sensing and 7 ng/ml for the detection of C-Reactive protein were demonstrated.

    3. Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry

      Yi Yu, Yaohui Chen, Hao Hu, Weiqi Xue, Kresten Yvind and Jesper Mork

      Article first published online: 22 JAN 2015 | DOI: 10.1002/lpor.201400207

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      A simple and ultracompact photonic-crystal structure exhibits diode functionality, i.e. one-way transmission only, is demonstrated. The structure is based on a photonic crystal waveguide coupled to a single nanocavity, and uses cavity-enhanced ultrafast carrier nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation effects at ultralow power and with good wavelength tunability.

  5. Review Articles

    1. Coherent pulse synthesis: towards sub-cycle optical waveforms

      Cristian Manzoni, Oliver D. Mücke, Giovanni Cirmi, Shaobo Fang, Jeffrey Moses, Shu-Wei Huang, Kyung-Han Hong, Giulio Cerullo and Franz X. Kärtner

      Article first published online: 2 JAN 2015 | DOI: 10.1002/lpor.201400181

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      The generation of sub-cycle light waveforms is at the frontiers of optics: ultrashort waveform generation calls for broad bandwidth and tailored spectral phase; coherent synthesis of fields from separate sources promises to fulfill both challenges. In this review, the experimental tools for coherent waveform synthesis and characterization are discussed, and the most recent advances are presented.

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