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Photonics North (PN)

Nonlinear Optics in a Diamond Micro- and Nano-Cavities

Sigurd Flågan, Joe Itoi, Prasoon Kumar Shandilya, Waleed El-Sayed, Elham Zohari, Parisa Behjat, Natália C. Carvalho, Vinaya K. Kavatamane, Joseph E. Losby, Paul E. Barclay

Published Jun 12, 2023• 1 citation
Publisher

Abstract

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.

DOI
10.1109/pn58661.2023.10223001

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