Charge state transition of spectrally stabilized tin-vacancy centers in diamond

• URL: http://arxiv.org/abs/2412.07087v1
• Date: Tue, 10 Dec 2024 01:08:20 GMT
• Title: Charge state transition of spectrally stabilized tin-vacancy centers in diamond
• Authors: Keita Ikeda, Yiyang Chen, Peng Wang, Yoshiyuki Miyamoto, Takashi Taniguchi, Shinobu Onoda, Mutsuko Hatano, Takayuki Iwasaki,
• Abstract summary: We study the spectral stability and charge state transition of tin-vacancy (SnV) centers in diamond. We find that the instability occurs due to the charge state transition to a dark state.
• Score: 4.591710988381086
• License:
• Abstract: Solid-state quantum emitters are an important platform for quantum information processing. The fabrication of the emitters with stable photon frequency and narrow linewidth is a fundamental issue, and it is essential to understand optical conditions under which the emitter keeps a bright charge state or transitions to a dark state. For these purposes, in this study, we investigate the spectral stability and charge state transition of tin-vacancy (SnV) centers in diamond. The photoluminescence excitation spectra of multiple SnV centers are basically stable over time with nearly transform-limited linewidths under resonant excitation, while simultaneous irradiation of resonant and non-resonant lasers makes spectra from the SnV centers unstable. We find that the instability occurs due to the charge state transition to a dark state. The charge state transition rates are quantitatively investigated depending on the laser powers. Lastly, with first-principle calculations, we model the charge state transition of the SnV center under the laser irradiation.

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