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URN:
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http://URN.fi/URN:NBN:fi:tty-201212121368
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Title:
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Efficient second-harmonic generation in silicon nitride resonant waveguide gratings |
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Author:
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Ning, Tingyin; Pietarinen, Henna; Hyvärinen, Outi; Kumar, Ravi; Kaplas, Tommi; Kauranen, Martti; Genty, Goery |
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Publication type:
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Artikkeli - Article |
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Issue date:
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2012-10 |
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DOI:
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http://dx.doi.org/10.1364/OL.37.004269
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Description:
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© 2012 The Optical Society |
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University:
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Tampereen teknillinen yliopisto - Tampere University of Technology |
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Faculty:
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Luonnontieteiden ja ympäristötekniikan tiedekunta – Faculty of Science and Environmental Engineering |
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Department:
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Fysiikan laitos – Department of Physics
Optoelektroniikan tutkimuskeskus – Optoelectronics Research Centre |
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Abstract:
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We demonstrate a thousand-fold enhancement of second-harmonic generation in an all-dielectric silicon nitride (SiN) resonant waveguide grating compared to a flat SiN film. The strong second-harmonic output measured at 532 nm results from the combination of the enhanced local fields in the nanostructure and the large second-order susceptibility of SiN. The second-harmonic conversion efficiency in the resonant structure is found to be of the order of 10−8, which is significantly larger than that typically observed from plasmonic metal nanostructures. |
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Copyright:
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This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. |