Design and Application of a Near Field Microwave Antenna for the Spin Control of Nitrogen-Vacancy Centers  

作　　者：杨丽丽 刘刚钦 潘新宇 陈东敏 

机构地区：[1]Institute of Physics, Chinese Academy of Sciences, Beijing 100190

出　　处：《Chinese Physics Letters》2010年第3期308-311,共4页中国物理快报（英文版）

摘　　要：Controlled manipulation of the electron spin by means of a microwave field is investigated. The near magnetic field generated by a copper wire antenna is measured experimentally and simulated theoretically, and the optimum antenna length and position are obtained. By measuring the change in the fluorescence of nitrogen-vacancy （N-V） centers in diamond after excitation with a 532 nm continuous wave laser at room temperature, it is verified that the spin of the N-V center can be effectively controlled by the microwave field.Controlled manipulation of the electron spin by means of a microwave field is investigated. The near magnetic field generated by a copper wire antenna is measured experimentally and simulated theoretically, and the optimum antenna length and position are obtained. By measuring the change in the fluorescence of nitrogen-vacancy （N-V） centers in diamond after excitation with a 532 nm continuous wave laser at room temperature, it is verified that the spin of the N-V center can be effectively controlled by the microwave field.

关 键 词：Electronics and devices Condensed matter: structural mechanical & thermal 

分 类 号：TN822.4[电子电信—信息与通信工程] TM734[电气工程—电力系统及自动化]