Advanced Optical Materials

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Recently Published Articles

  1. Dramatically Enhanced Performance of Flexible Micro-VCSELs via Thermally Engineered Heterogeneous Composite Assemblies

    Dongseok Kang, Sung-Min Lee, Anthony Kwong and Jongseung Yoon

    Article first published online: 31 MAR 2015 | DOI: 10.1002/adom.201400521

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    Thermally engineered flexible composite assemblies of micro-vertical cavity surface emitting lasers (VCSELs) are developed for high-performance operation on a flexible substrate. The novel integration pathway enables significant reduction of effective thermal resistance of printed micro-VCSELs on plastics and therefore dramatically enhances performance, comparable to or higher than devices on the source wafer, while preserving critical advantages in mechanically flexible and optically transparent constructions.

  2. Electrically Driven Quantum Light Sources

    Alberto Boretti, Lorenzo Rosa, Andrew Mackie and Stefania Castelletto

    Article first published online: 30 MAR 2015 | DOI: 10.1002/adom.201500022

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    Compact electrically excited photon sources with quantum properties and their applications are reviewed. Many physical systems can be used to fabricate an electrically driven device. Designs and realizations based on micropillar cavities formed from n- and p-doped GaAs distributed Bragg reflectors with integrated active InGaAs quantum dots, as well as nanowires, are key recent results in the direction to achieve the highest mode confinement in compact systems.

  3. Manipulating Optical Properties of ZnO/Ga:ZnO Core–Shell Nanorods Via Spatially Tailoring Electronic Bandgap

    Xin Zhao, Yuan Gao, Yue Wang, Hilmi Volkan Demir, Shijie Wang and Handong Sun

    Article first published online: 30 MAR 2015 | DOI: 10.1002/adom.201500087

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    Enhancing optical and electrical properties of ZnO nanostructures via surface doping is demonstrated by Ga:ZnO–ZnO core–shell nanorods, which are grown by a genetic two-step method. Low-temperature photoluminescence and X-ray photoelectron spectroscopy prove the n+ shell significantly suppresses the surface-related recombination by spatially modulating the electronic band structure. The study provides a significant physical insight in designing optoelectronic devices.

  4. Unveiling the Origin of Third Harmonic Generation in Hybrid ITO–Plasmonic Crystals

    Heykel Aouani, Miguel Navarro-Cía, Mohsen Rahmani and Stefan A. Maier

    Article first published online: 30 MAR 2015 | DOI: 10.1002/adom.201500112

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    A hybrid plasmonic crystal for reaching a higher nonlinear upconversion rate is proposed and the physical mechanism behind the enhancement is unveiled by demonstrating that the nonlinear signal contains a unique spectral fingerprint regarding its origin. This opens new opportunities for understanding and optimizing nonlinear light–matter interactions in complex nanoscale media.

  5. Controlling Microsized Polymorphic Architectures with Distinct Linear and Nonlinear Optical Properties

    Jialiang Xu, Sergey Semin, Jonathan Cremers, Linjun Wang, Matteo Savoini, Eduard Fron, Eduardo Coutino, Thibault Chervy, Chunliang Wang, Yongjun Li, Huibiao Liu, Yuliang Li, Paul Tinnemans, Paul H. J. Kouwer, Thomas W. Ebbesen, Johan Hofkens, David Beljonne, Alan E. Rowan and Theo Rasing

    Article first published online: 27 MAR 2015 | DOI: 10.1002/adom.201400637

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    Controlled assembly of polymorphic organic materials into well-defined microstructures with specific properties is desirable for next-generation optoelectronic devices. Here, a multistep drop-casting technique is developed for the selective fabrication of kinetically and thermodynamically stable polymorphic microfibers and microplates with tunable optical responses in the linear and nonlinear optical regimes.