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Numerical optimization of a grating coupler for the efficient excitation of surface plasmons at an Ag-SiO2 interface

Jesse Lu·Csaba Petre·Josh Conway·Eli Yablonovitch
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Abstract

The efficient generation of surface plasmons from free space optical waves is still an open problem in the field. Here we present a methodology and optimized design for a grating coupler. The photo-excitation of surface plasmons at an Ag-SiO2 interface is numerically demonstrated to yield greater than 50% coupling from a Gaussian beam into surface plasmon voltages and currents.

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Jesse Lu, Csaba Petre, Josh Conway, Eli Yablonovitch. 2007-03-04. Numerical optimization of a grating coupler for the efficient excitation of surface plasmons at an Ag-SiO2 interface. https://doi.org/10.1364/josab.24.002268

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