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Templated growth of diamond optical resonators via plasma-enhanced chemical vapor deposition

MetadataDetails
Publication Date2016-08-22
JournalApplied Physics Letters
AuthorsXue Zhang, Evelyn L. Hu
InstitutionsHarvard University
Citations8

We utilize plasma-enhanced chemical vapor deposition through a patterned silica mask for templated diamond growth to create optical resonators. The pyramid-shaped structures have quality factors Q up to 600, measured using confocal photoluminescence spectroscopy, and mode volumes V as small as 2.5(Ī»/n)3 for resonances at wavelengths Ī» between 550 and 650 nm, and refractive index n, obtained using finite-difference time-domain simulations. Bright luminescence from nitrogen-vacancy and silicon-vacancy centers in the grown diamond is observed. The resonator design and fabrication technique obviates any etching of diamond, which preserves emitter properties in a pristine host lattice.

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