Author:
Flågan Sigurd,Itoi Joe,Shandilya Prasoon K.,Zohari Elham,Kavatamane Vinaya K.,Losby Joseph E.,Barclay Paul E.
Abstract
We demonstrate cavity-enhanced second-harmonic generation from a diamond microdisk. We further show that multicolor excitation of nitrogen-vacancy centers strongly affects the observed second-harmonic signal, indicating a difference in χ(2) between the two possible charge-states.