Paper
25 April 2002 Enhanced Cerenkov SHG in planar nonlinear waveguide reproducing a 1D PBG
Devid Pezzetta, Concita Sibilia, Roberta Ramponi, Roberto Osellame, Marco Marangoni, Mario Bertolotti, Joseph W. Haus, Michael Scalora, Mark J. Bloemer, Charles M. Bowden
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Abstract
Second harmonic generation (SHG) in Cerenkov configuration is investigated under conditions for which the use of a linear grating fabricated on top of the waveguide reproduces a photonic band-gap structure. The fundamental mode of the guide, at the fundamental frequency, is tuned at the photonic band edge resonance thus experiencing a great confinement and enhancement of the electromagnetic field inside the structure. The conversion efficiency achieved in both forward and backward direction is at least one order of magnitude greater than that of a 'conventional' Cerenkov emission in a waveguide of the same length.
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Devid Pezzetta, Concita Sibilia, Roberta Ramponi, Roberto Osellame, Marco Marangoni, Mario Bertolotti, Joseph W. Haus, Michael Scalora, Mark J. Bloemer, and Charles M. Bowden "Enhanced Cerenkov SHG in planar nonlinear waveguide reproducing a 1D PBG", Proc. SPIE 4655, Photonic Bandgap Materials and Devices, (25 April 2002); https://doi.org/10.1117/12.463876
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KEYWORDS
Waveguides

Second-harmonic generation

Refractive index

Wave propagation

Cladding

Planar waveguides

Harmonic generation

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