Reduced photothermal heating in diamonds enriched with H3 point defects
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-03-09 |
| Authors | C. P. Gupta, Anupum Pant, Xiaojing Xia, Robert G. Felsted, Katharina Senkalla |
| Institutions | University of Washington, Pacific Northwest National Laboratory |
Abstract
Section titled āAbstractāThe H3 center in diamond has been shown to exhibit several promising characteristics for laser cooling applications including a neutral charge state, high radiative quantum yield, and efficient anti-Stokes photoluminescence. In this work, we show that upon excitation with a 532 nm laser, bulk diamond crystals doped with H3 centers emit efficient up-conversion photoluminescence and also show significantly reduced photothermal heating relative to crystals doped with NV centers. These results encourage future exploration of techniques for H3 enrichment in diamonds at high-pressure, high-temperature conditions for the simultaneous anti-Stokes fluorescence cooling and radiation balanced lasing in semiconductor materials.