Radiation balanced spherical microlaser

Xiaojing Xia; Anupum Pant; R. Greg Felsted; Rachel E. Gariepy; E. James Davis; Peter J. Pauzauskie

doi:10.1117/12.2583393

4 May 2021 Radiation balanced spherical microlaser

Xiaojing Xia, Anupum Pant, R. Greg Felsted, Rachel E. Gariepy, E. James Davis, Peter J. Pauzauskie

Proceedings Volume 11702, Photonic Heat Engines: Science and Applications III; 117020R (2021) https://doi.org/10.1117/12.2583393
Event: SPIE OPTO, 2021, Online Only

Abstract

Microlasers based on lanthanide-doped upconverting nanoparticles (UCNPs) have been demonstrated but radia- tion balanced lasing (RBL) remains a challenge. We present a novel design of radiation-balanced microlaser using microspheres coated with UCNPs. The model is tested using nitrogen vacancy doped nanodiamonds (NV:NDs) coated on silica microspheres. High quality factor enhancement of selective bands in the NV spectral features due to coupled whispering gallery modes (WGMs) was measured. The temperature of NDs on silica spheres was measured experimentally using Debye-Waller factor thermometry and analyzed using a novel analytical heat transfer model for spherical coordinates with localized sources.

Conference Presentation

Citation Download Citation

Xiaojing Xia, Anupum Pant, R. Greg Felsted, Rachel E. Gariepy, E. James Davis, and Peter J. Pauzauskie "Radiation balanced spherical microlaser", Proc. SPIE 11702, Photonic Heat Engines: Science and Applications III, 117020R (4 May 2021); https://doi.org/10.1117/12.2583393

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