Second harmonic generation enhancement and directional emission from topological corner state based on the quantum spin Hall effect.
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DOI: 10.1364/oe.432660
Abstract: Topological corner state has attracted much research interests since it does not obey the conventional bulk-edge correspondence and enables tightly confined light within small volumes. In this work, we demonstrate an enhanced second harmonic generation… read more here.
Keywords: corner state; second harmonic; corner; topological corner ... See more keywords