Sum frequency generation from touching wires: a transformation optics approach
نویسندگان
چکیده
We employ transformation optics to study analytically nonlinear wave mixing from a singular geometry of touching plasmonic wires. obtain the analytic solution near field and complement it with far-field properties. find, somewhat surprisingly, that optimal efficiency (in both regimes) is obtained for degenerate case second-harmonic generation. exploit trace this behavior spatial overlap input fields geometric singularity.
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ژورنال
عنوان ژورنال: Optics Letters
سال: 2021
ISSN: ['1539-4794', '1071-2763', '0146-9592', '1071-8842']
DOI: https://doi.org/10.1364/ol.414940