Advanced Optical Materials

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Recently Published Articles

  1. High-Efficiency Dielectric Huygens’ Surfaces

    Manuel Decker, Isabelle Staude, Matthias Falkner, Jason Dominguez, Dragomir N. Neshev, Igal Brener, Thomas Pertsch and Yuri S. Kivshar

    Article first published online: 1 FEB 2015 | DOI: 10.1002/adom.201400584

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    All-dielectric Huygens' metasurfaces are experimentally demonstrated providing transmission-phase coverage from 0 to 2π with record resonant transmission efficiencies of more than 55% at NIR wavelengths. Transmission efficiencies very close to 100% can be achieved for an appropriate choice of the embedding medium, and possible applications of this new concept are explored.

  2. Efficient Spontaneous and Stimulated Emission from 1,4-Bis(2,2-diphenylvinyl)benzene Single Crystals with Cross-Dipole Stacking

    Suqian Ma, Jibo Zhang, Jingyu Qian, Jinlong Chen, Bin Xu and Wenjing Tian

    Article first published online: 1 FEB 2015 | DOI: 10.1002/adom.201400572

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    Organic single crystals with cross-dipole stacking based on 1,4-bis(2,2-diphenylvinyl)benzene are prepared. X-ray diffraction shows that adjacent molecules in the single crystal adopt a rotational angle of ≈62°. Such a stacking mode is highly beneficial for spontaneous and stimulated emission, resulting in high solid-state fluorescence efficiency and excellent amplified spontaneous emission characteristics.

  3. SERS-Enabled Lab-on-a-Chip Systems

    Jian-An Huang, Yong-Lai Zhang, Hong Ding and Hong-Bo Sun

    Article first published online: 23 JAN 2015 | DOI: 10.1002/adom.201400534

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    With the rapid progress in microfluidics and optofluidics, surface enhanced Raman spectroscopy (SERS) has been successfully combined with Lab-on-a-Chip (LoC) systems for sensitive optofluidic dectection. In this review, the recent advances of SERS and microfluidics for the development of reliable multifunctional SERS-enabled LoC systems and their broad chemical/biological applications is summarized.

  4. Diketopyrrolopyrroles: Synthesis, Reactivity, and Optical Properties

    Marek Grzybowski and Daniel T. Gryko

    Article first published online: 23 JAN 2015 | DOI: 10.1002/adom.201400559

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    New, important organic compounds are often discovered by happenstance. In this review, the chemistry of diketopyrrolopyrroles and the reasons why these high-quality pigments became the work-horse of organic photonics and electronics is comprehensively described. A critical overview of the optical properties of a variety of diketopyrrolopyrroles and their π-expanded analogues is also provided.

  5. Nonlinear Optical Properties and Temperature-Dependent UV–Vis Absorption and Photoluminescence Emission in 2D Hexagonal Boron Nitride Nanosheets

    Pathik Kumbhakar, Arup Kanti Kole, Chandra Sekhar Tiwary, Subrata Biswas, Soumya Vinod, Jaime Taha-Tijerina, Udit Chatterjee and Pulickel M. Ajayan

    Article first published online: 22 JAN 2015 | DOI: 10.1002/adom.201400445

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    Nonlinear optical properties of hexagonal boron nitride nanosheets (h-BNNS) with a large two-photon absorption cross section of ≈570 000 GM are reported at 1064 nm wavelength, for the first time. The dEg/dT of 5.9 meV K−1 and the temperature-dependent linear defect-induced photoluminescence emission in UV region in BNNS is reported. The present work may open up new applications of h-BNNS in biophotonic devices.