Optical Charge State Manipulation of Lead-Vacancy Centers in Diamond
Group-IV vacancy centers in diamond exhibit excellent optical and spin coherence properties, making them highly promising and scalable spin qubit candidates. Since only specific charge states are magneto-optically active, control over the charge state is fundamental for quantum applications. Here, we realize the charge state control of lead-vacancy centers (PbV) through multicolor laser irradiation. We achieve tunable population manipulation of the negatively charged state from 0 to 89%, paving the way for spin control of the negatively charged PbV center. Furthermore, through analysis of charge state dynamics, we propose a charge cycle between the neutral and negatively charged states, indicating a possible pathway to the neutral PbV center with a spin-1 system.
Authors
- Yiyang Chen (ORCID: https://orcid.org/0009-0005-0088-1914)
- Shinobu Onoda (ORCID: https://orcid.org/0000-0003-1425-0708)
- Mutsuko Hatano (ORCID: https://orcid.org/0000-0001-7722-5927)
- Takashi Taniguchi (ORCID: https://orcid.org/0000-0002-1467-3105)
- Yoshiyuki Miyamoto (ORCID: https://orcid.org/0000-0001-6834-0499)
- Takayuki Iwasaki (ORCID: https://orcid.org/0000-0001-6319-7718)
- Etsuro OTA
- Ryotaro Abe (ORCID: https://orcid.org/0009-0003-7587-2794)
Institutions
- Tokyo Institute of Technology (JP)
- National Institute for Materials Science (JP)
- Shanghai Institute for Science of Science (CN)
- National Institutes for Quantum Science and Technology (JP)
- Institute of Science Tokyo (JP)
- National Institute of Advanced Industrial Science and Technology (JP)
Publication Details
- Journal
- Nano Letters
- Published
- 2025-11-13
- DOI
- https://doi.org/10.1021/acs.nanolett.5c04448
- Primary Topic
- Diamond and Carbon-based Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00