Nonlinear Optics in a Diamond Micro- and Nano-Cavities

Resonant recirculation of light in optical microcavities can greatly enhance light-matter interactions. In this work, we demonstrate cavity-enhanced second-harmonic and third-harmonic generation from a single-crystal diamond microdisk. The presence of crystal defects - here nitrogen-vacancy centers...

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Bibliographic Details
Main Authors: Flagan, Sigurd, Itoi, Joe, Shandilya, Prasoon K., El-Sayed, Waleed, Zohari, Elham, Behjat, Parisa, Carvalho, Natalia C., Kavatamane, Vinaya K., Losby, Joseph E., Barclay, Paul E.
Format: Conference Proceeding
Language:English
Subjects:
Crystals
Diamond
Diamonds
Fiber nonlinear optics
Frequency conversion
Nanophotonic
Nitrogen-Vacancy Center
Nonlinear Optics
Optical Cavity
Optical fibers
Optical pumping
Stimulated emission
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Summary:Resonant recirculation of light in optical microcavities can greatly enhance light-matter interactions. In this work, we demonstrate cavity-enhanced second-harmonic and third-harmonic generation from a single-crystal diamond microdisk. The presence of crystal defects - here nitrogen-vacancy centers - breaks the inversion symmetry of the diamond crystal, allowing for observation of the otherwise forbidden second-harmonic generation. We further show that the photon emission follows a clear dependency with cavity detuning of both the pump and emission modes, a clear indication of a doubly-resonant configuration.
ISSN:2693-8316
DOI:10.1109/PN58661.2023.10223001