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Diamond photonic crystal mirror with a partial bandgap by two 2D photonic crystal layers

MetadataDetails
Publication Date2020-11-28
JournalOptics Express
AuthorsSeung‐Woo Jeon, Kiwon Kwon, Sang-Wook Han, Yong‐Su Kim, Young‐Wook Cho
Citations7

In this study, photonic crystals with a partial bandgap are demonstrated in the visible region using single-crystal diamonds. Quasi-three-dimensional photonic crystal structures are fabricated in the surface of the single-crystal diamonds using a tetrahedron Faraday cage that enables angled dry etching in three directions simultaneously. The reflection spectra can be controlled by varying the lattice constant of the photonic crystals. In addition, nitrogen-vacancy center single-photon sources are implanted on top of the diamond photonic crystals, and doubled collection efficiency from the light sources is achieved.