量子电子学报 ›› 2024, Vol. 41 ›› Issue (2): 349-356.doi: 10.3969/j.issn.1007-5461.2024.02.017

• 量子光学 • 上一篇    下一篇

基于复合纳米振子系统的光学质量传感

朱鹏杰 , 陈华俊 *   

  1. ( 安徽理工大学力学与光电物理学院, 安徽 淮南 232001 )
  • 收稿日期:2022-06-16 修回日期:2022-08-25 出版日期:2024-03-28 发布日期:2024-03-28
  • 通讯作者: E-mail: chenphysics@126.com E-mail:E-mail: chenphysics@126.com
  • 作者简介:朱鹏杰 ( 1995 - ), 安徽人, 研究生, 主要从事纳米机械振子系统方面的研究。E-mail: 1539203585@qq.com
  • 基金资助:
    国家自然科学基金 (11647001, 11804004), 安徽省自然科学基金 (1708085QA11), 中国博士后科学基金 (2020M681973), 高校优秀青年骨 干教师国外访问研修项目(gxgwfx2021024), 安徽理工大学引进人才科研启动项目(11211)

All⁃optical mass sensing based on hybrid nanomechanical oscillator system

ZHU Pengjie , CHEN Huajun *   

  1. ( School of Mechanics and Optoelectronic Physics, Anhui University of Science and Technology, Huainan 232001, China )
  • Received:2022-06-16 Revised:2022-08-25 Published:2024-03-28 Online:2024-03-28

摘要: 提出了一种基于金刚石氮-空位(NV)色心-悬臂梁复合纳米机械振子系统, 该系统将金刚石NV 色心镶嵌在悬 臂梁底部, 再通过悬臂梁振动形变产生的应力与金刚石NV 色心中的自旋电子相互作用实现耦合; 进而利用光学泵 浦-探测技术研究了该系统的相干光学特性。首先, 基于该复合系统的探测吸收谱, 提出了一种测量纳米机械振子频 率的全光学方案, 在红边带的条件下, 可通过观测吸收谱中两尖峰的分裂宽度从而确定自旋与纳米机械振子的耦合 强度。其次, 由于金刚石NV 中心电子自旋具有较长的相干时间, 因此进一步基于该复合系统提出了一种室温下全 光学质量传感方案。

关键词: 量子光学, 质量传感, 纳米机械振子系统, 金刚石氮-空位色心

Abstract: A hybrid nanomechanical resonator system consisting of a diamond nitrogen vacancy (NV) color center and a cantilever beam is proposed, where the NV color center is embedded at the bottom of the cantilever beam, and the coupling is achieved through the interaction between the stress generated by the vibration deformation of the cantilever beam and the spin electrons in the diamond NV color center. Then, the coherent optical properties of the hybrid system are investigated using optical pump-probe technique. Firstly, an all-optical approach for measuring the frequency of nanomechanical resonator is proposed based on the absorption spectra of the hybrid system. Under the condition of the red sideband, the coupling strength between spin and nanomechanical oscillator can be determined by observing the splitting width of two peaks in the absorption spectra. In addition, due to the extended coherence period of the electron spin in NV center, an all-optical mass sensing approach at room-temperature is further proposed based on this hybrid system.

Key words: quantum optics, mass sensing, nanomechanical oscillator system, diamond nitrogen-vacancy color center

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