Widely tunable, doubly resonant, visible diamond Raman scattering in an open microcavity
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2022-04-01 |
| Authors | Daniel Riedel, Sigurd FlÄgan, Patrick Maletinsky, Richard J. Warburton |
| Institutions | University of Basel, Stanford University |
Abstract
Section titled âAbstractâRaman lasers are a valuable resource for frequency conversion of coherent light. Their drawback of requiring high pump powers could be mitigated by nanophotonic engineering. The implementation of a low-threshold Raman laser in the visible, however, has remained elusive due to material and fabrication limitations. In this work, we report a novel platform consisting of a diamond membrane embedded in an open-access Fabry-Perot microcavity. Based on the large quality factors of our device, we predict that a sub-mW lasing threshold for visible wavelengths is within reach by harnessing a doubly resonant configuration. We demonstrate a >THz continuous tuning range of doubly-resonant Raman scattering by exploiting the in situ tuning capability of our platform. Our results pave the way for the creation of a universal low-power frequency shifter.