Advanced Optical Materials

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Recently Published Articles

  1. Large-Area Antenna-Assisted SEIRA Substrates by Laser Interference Lithography

    Shahin Bagheri, Harald Giessen and Frank Neubrech

    Article first published online: 31 JUL 2014 | DOI: 10.1002/adom.201400218

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    Laser interference lithography is utilized to fabricate large-area plasmonic antenna substrates with tunable plasmonic resonances in the near- and mid-infrared spectral range for surface-enhanced infrared absorption (SEIRA). The broad applicability of such SEIRA substrates is demonstrated by enhancing the infrared vibrational signals of a monolayer octadecanethiol and by monitoring the ultraviolet degradation of a polymer via the decrease of its specific vibrational modes.

  2. Diamond Nanophotonics

    Igor Aharonovich and Elke Neu

    Article first published online: 30 JUL 2014 | DOI: 10.1002/adom.201400189

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    This progress report summarizes the recent advances in the field of diamond nanophotonics. It describes various single photon emitters and the fabrication of optical resonators, and it highlights the recent applications and quantum optics experiments carried out with diamond. The table of contents figure shows a nanodiamond array, superimposed with a finite-difference time-domain simulation of an electric field within a microdisk.

  3. Ultrafast Electrically Tunable Polaritonic Metasurfaces

    Jongwon Lee, Seungyong Jung, Pai-Yen Chen, Feng Lu, Frederic Demmerle, Gerhard Boehm, Markus-Christian Amann, Andrea Alù and Mikhail A. Belkin

    Article first published online: 30 JUL 2014 | DOI: 10.1002/adom.201400185

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    Electrically tunable mid-infrared meta­surfaces with nanosecond response times and broad tuning range are reported. Electrical tuning of metasurface reflectivity is achieved by employing strong polaritonic coupling of electromagnetic modes in metallic nanoresonators with voltage-tunable inter-subband transitions in a semiconductor heterostructure designed for a giant electro-optic effect. Experimentally, 300 nm absorption peak tuning and over 30% of reflected signal intensity modulation are demonstrated at around 7 μm wavelength.

  4. Photochromic Switching of Fano Resonances in Metallic Photonic Crystal Slabs

    Felix Bleckmann, Eduard Maibach, Sandra Cordes, Thorsten E. Umbach, Klaus Meerholz and Stefan Linden

    Article first published online: 30 JUL 2014 | DOI: 10.1002/adom.201400187

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    Metallic photonic crystal slabs composed of periodic gold nanowire arrays embedded in a photochromic waveguide are studied by optical transmittance spectroscopy. The interaction of the localized plasmon mode of the nanowires and the delocalized waveguide mode gives rise to pronounced Fano resonances. By switching the photochromic waveguide from the transparent to the absorbing state, the Fano dip is strongly suppressed.

  5. Symmetry-Broken Metamaterial Absorbers as Reflectionless Directional Couplers for Surface Plasmon Polaritons in the Visible Range

    Fan Ye, Michael J. Burns and Michael J. Naughton

    Article first published online: 29 JUL 2014 | DOI: 10.1002/adom.201400080

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    Symmetry-broken metal–insulator–metal metamaterial absorbers are shown to have the ability to reflectionlessly coup­le vertically incident photons into horizontally propagating surface plasmon polaritons in a preferred direction in the visible range. The leverage of the symmetry properties of metamaterials paves ways for a wide range of applications in integrated nanoplasmonics, plasmonic logic, and plasmonic light harvesting.

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