Abstract
The singlet states of the negatively charged nitrogen-vacancy centers in diamond play a key role in its optical spin control and readout. In this work, the hitherto unknown ionization energy of the singlet is measured experimentally and found to be in the range 1.91-2.25 eV. This is obtained by analyzing photoluminescence measurements incorporating spin control and nitrogen-vacancy charge state differentiation, along with simulations based on the nitrogen-vacancy's master equation. This work establishes a protocol for a more accurate estimate of this ionization energy, which can possibly lead to improved readout methods.
Original language | American English |
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Article number | 034076 |
Journal | Physical Review Applied |
Volume | 19 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2023 |
Bibliographical note
Funding Information:The work of S.A.W. was supported by the Dalia and Dan Maydan fellowship and the Levitan fellowship. The work of G.H. was supported by the Melbourne research scholarship. N.B. acknowledges support from the European Union’s Horizon 2020 research and innovation program under Grant Agreements No. 101070546 (MUQUABIS) and No. 828946 (PATHOS), and has been supported in part by the Ministry of Science and Technology, Israel, the innovation authority (Project No. 70033), and the ISF (Grants No. 1380/21 and No. 3597/21).
Publisher Copyright:
© 2023 American Physical Society.