Journal
APPLIED PHYSICS LETTERS
Volume 113, Issue 21, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5054730
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Funding
- JSPS KAKENHI [JP17H03040, 16H02088]
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We investigated the effect of laser pulse duration on nitrogen-vacancy (NV) center generation inside a single crystal diamond. We compared pulse durations of 40 fs (femtosecond laser) and 1 ps (picosecond laser). We found that in both cases, ensemble NV centers could be generated inside the diamond. However, the maximum photoluminescence intensity of the NV center without graphitization for the 40 fs duration was higher than that for the 1 ps duration. This indicated that the femtosecond laser was harder to graphitize diamond and could generate more NV centers without graphitization. This difference may be due to the difference in the photo-absorption process and the resulting lattice dynamics. Published by AIP Publishing.
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