研究金刚石单个NV中心与其它物质之间的荧光共振能量传递过程，揭示共振能量传递的物理机制，探索共振能量传递对NV中心单电子自旋态的影响。研究内容包括：金刚石单个NV中心与不同类型分子之间、不同性质薄膜之间荧光共振能量传递所导致的荧光寿命减小和荧光强度降低；通过外加电场调控石墨烯载流子浓度研究NV中心与石墨烯之间荧光共振能量传递效率和石墨烯载流子浓度的关系；建立单个NV中心荧光共振能量传递物理机制；研究NV中心荧光共振能量传递对NV中心单电子自旋态相干性的影响。探索NV中心和其它物质之间共振能量传递效率的调控途径和基于NV中心荧光共振能量传递对其它物质的检测方法。

We experimental study the Fluorescence Resonance Energy Transfer (FRET) between a single nitrogen-vacancy (NV) center in diamond and molecules and thin films, try to build a physical mechanism to understand the FRET of the NV center, and investigate the relationship of the coherent time of the single electron spin of the NV center and the FRET efficient. Our research including (1) the decreases of the fluorescence life time and intensity of a single NV center resulted by the FRET between NV center and the different types of molecules and thin films; (2) the FRET efficient between a single NV center and graphene films with different carrier concentration manipulated by applied electric potential; (3) the physical mechanism of FRET between NV center and molecules and thin films; (4) the influence of the coherent time of a single electron spin of a NV center by the FRET process. We try to find a possible method to manipulate the FRET efficient of a single NV center and to develop a new probe to investigate molecules and morphologies of films.