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.
Doubly resonant second harmonic generation in photonic crystal cavities via bound states in the continuum
Clementi M.;Barone A.;Gerace D.;Galli M.
2020-01-01
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.File in questo prodotto:
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