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Instantaneous luminescence of NV− center in diamond pumped by a femtosecond laser pulseстатья
- Авторы: Savvin Alexander, Andrianov Evgeny, Tereshchenkov Evgenii, Shishkov Vladislav, Zaloznaya Elizaveta, Mitrokhin Vladimir, Fedotov Andrei, Vins Viktor, Dormidonov Alexander
- Журнал: Journal of Luminescence
- Том: 282
- Год издания: 2025
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 121248
- DOI: 10.1016/j.jlumin.2025.121248
- Аннотация: The process of luminescence excitation of negatively charged NV centers in diamond is investigated by the up-conversion method with a femtosecond resolution. Our experimental technique allowed us to register that NV− center luminescence starts in the whole 600–800 nm spectral range in a time not exceeding 30 fs after excitation by the second harmonic of the femtosecond ytterbium laser. We have established that there is no time-dependent Stokes shift in the luminescence spectrum of the NV− center, which could be caused by relaxation of coherent phonon excitation. A theoretical model of NV− center describes the dynamics of the luminescence spectrum due to non-resonant Rabi oscillations of color center polarization and provides a quantitative agreement with experimental data. Thus, NV− center is a promising source of quantum light with ultrafast formation of luminescence.
- Добавил в систему: Федотов Андрей Борисович