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Conferences > FiO > 2020 > FM2C > FM2C.3

Doubly Resonant Second Harmonic Generation in Photonic Crystal Cavities via Bound States in the Continuum

Marco Clementi, Andrea Barone, Jun Wang, Momchil Minkov, Jean-François Carlin, Nicolas Grandjean, Shanhui Fan, Romuald Houdré, Dario Gerace, and Matteo Galli

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Abstract

We experimentally demonstrate doubly resonant second harmonic generation in gallium nitride photonic crystal cavities. The second harmonic mode is confined via a bound state in the continuum, which yields a radially polarized vortex beam.

© 2020 The Author(s)

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