Widely tunable, doubly resonant, visible diamond Raman scattering in an open microcavity

Daniel Riedel; Sigurd Flagan; Patrick Maletinsky; Richard Warburton

doi:10.1117/12.2610413

1 April 2022 Widely tunable, doubly resonant, visible diamond Raman scattering in an open microcavity

Daniel Riedel, Sigurd Flagan, Patrick Maletinsky, Richard Warburton

Proceedings Volume PC11987, Laser Resonators, Microresonators, and Beam Control XXIV; PC1198707 (2022) https://doi.org/10.1117/12.2610413
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

Raman 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.

Conference Presentation

Citation Download Citation

Daniel Riedel, Sigurd Flagan, Patrick Maletinsky, and Richard Warburton "Widely tunable, doubly resonant, visible diamond Raman scattering in an open microcavity", Proc. SPIE PC11987, Laser Resonators, Microresonators, and Beam Control XXIV, PC1198707 (1 April 2022); https://doi.org/10.1117/12.2610413

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