Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/44658
Title: Reducing inhomogeneous broadening of spin and optical transitions of nitrogen-vacancy centers in high-pressure, high-temperature diamond
Authors: Blinder, Remi
Mindarava, Yuliya
Tran , Thai Hien
Momenzadeh, Ali
Yang, Sen
SIYUSHEV, Petr 
Sumiya, Hitoshi
Tamasaku, Kenji
Osaka, Taito
Morishita, Norio
Takizawa, Haruki
Onoda, Shinobu
Hara, Hideyuki
Jelezko, Fedor
Wrachtrup, Joerg
Isoya, Junichi
Issue Date: 2024
Publisher: SPRINGERNATURE
Source: Communications Materials, 5 (1) (Art N° 224)
Abstract: With their optical addressability of individual spins and long coherence time, nitrogen-vacancy (NV) centers in diamond are often called "atom-like solid spin-defects". As observed with trapped atomic ions, quantum interference mediated by indistinguishable photons was demonstrated between remote NV centers. In high sensitivity DC magnetometry at room temperature, NV ensembles are potentially rivaling with alkali-atom vapor cells. However, local strain induces center-to-center variation of both optical and spin transitions of NV centers. Therefore, advanced engineering of diamond growth toward crystalline perfection is demanded. Here, we report on the synthesis of high-quality HPHT (high-pressure, high-temperature) crystals, demonstrating a small inhomogeneous broadening of the spin transitions, of T-2* = 1.28 mu s, approaching the limit for crystals with natural C-13 abundance, that we determine as T-2* = 1.48 mu s. The contribution from strain and local charges to the inhomogeneous broadening is lowered to similar to 17 kHz full width at half maximum for NV ensemble within a > 10 mm(3) volume. Looking at optical transitions in low nitrogen crystals, we examine the variation of zero-phonon-line optical transition frequencies at low temperatures, showing a strain contribution below 2 GHz for a large fraction of single NV centers.
Notes: Blinder, R (corresponding author), Ulm Univ, Inst Quantum Opt, D-89081 Ulm, Germany.
remi.blinder@uni-ulm.de
Document URI: http://hdl.handle.net/1942/44658
e-ISSN: 2662-4443
DOI: 10.1038/s43246-024-00660-8
ISI #: 001336867300001
Rights: The Author(s) 2024. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Category: A1
Type: Journal Contribution
Appears in Collections:Research publications

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