[We-P] Quantum optics, quantum emitters, NV centers

[We-P-94] Pressure Dependent Zero-Field Splitting in the Excited Triplet State of Diamond NV- Centers

〇Ryotaro Suda¹, Kenshin Uriu², Kei Komatsubara², Kouki Yamamoto¹, Kento Sasaki¹, Mari Einaga², Katsuya Shimizu^2,3, Kensuke Kobayashi^1,4,5 (1. The Univ. of Tokyo (Japan), 2. The Univ. of Osaka (Japan), 3. Geodynamics Res. Center (Japan), 4. Inst. for Physics of Intelligence (Japan), 5. Trans-Scale Quantum Sci. Inst. (Japan))

We investigate the pressure dependence of zero-field splitting in the excited triplet state of diamond NV- centers using ODMR under GPa conditions. The results indicate the potential of excited-state sensing and provide a basis for improved modeling of strain and nonradiative processes.