期刊
OPTICS EXPRESS
卷 23, 期 20, 页码 26544-26550出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.026544
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资金
- U.S. Army (Engineering second order nonlinear effects in optical antennas)
- CARIPLO (SHAPES - Second-HArmonic Plasmon-Enhanced Sensing)
- DOLPHIN project of the SEAM (Science and Engineering of Advanced Materials and Devices) Labex of Sorbonne Paris Cite
We designed AlGaAs-on-aluminium-oxide all-dielectric nanoantennas with magnetic dipole resonance at near-infrared wavelengths. These devices, shaped as cylinders of 400nm height and different radii, offer a few crucial advantages with respect to the silicon-on-insulator platform for operation around 1.55 mu m wavelength: absence of two-photon absorption, high chi((2)) nonlinearity, and the perspective of a monolithic integration with a laser. We analyzed volume chi((2)) nonlinear effects associated to a magnetic dipole resonance in these nanoantennas, and we predict second-harmonic generation exceeding 10(-3) efficiency with 1GW/cm(2) of pump intensity. (C)2015 Optical Society of America
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