飞秒激光脉冲泵浦金刚石中NV -中心的瞬时发光

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-04-14 DOI:10.1016/j.jlumin.2025.121248

Alexander Savvin , Evgeny Andrianov , Evgenii Tereshchenkov , Vladislav Shishkov , Elizaveta Zaloznaya , Vladimir Mitrokhin , Andrei Fedotov , Viktor Vins , Alexander Dormidonov

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引用次数: 0

摘要

用飞秒分辨率的上转换方法研究了金刚石中带负电荷的NV中心的发光激发过程。我们的实验技术允许我们记录到，在飞秒镱激光的二次谐波激发后，在整个600-800 nm光谱范围内，NV -中心发光在不超过30 fs的时间内开始。我们已经确定NV -中心的发光光谱中不存在随时间变化的Stokes位移，这可能是由相干声子激发的弛豫引起的。NV -中心的理论模型描述了色心偏振非共振拉比振荡引起的发光光谱动力学，并提供了与实验数据定量一致的结果。因此，NV -中心是一种极有前途的量子光源，具有超快的发光形成。

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Instantaneous luminescence of NV− center in diamond pumped by a femtosecond laser pulse

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.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.