三自旋体系核自旋单重态的制备与单重态二维谱的实现
胡凯瑞,杨雪,黄志明,辛家祥,魏达秀*(
),姚叶锋*()
),姚叶锋*()
Preparing Nuclear Spin Singlet State in a Three-spin System and Its Application in 2D Spectrum
Kai-rui HU,Xue YANG,Zhi-ming HUANG,Jia-xiang XIN,Da-xiu WEI*(),Ye-feng YAO*()
),Ye-feng YAO*()
图2. (a) 优化控制（OC/OC′）脉冲序列. 其中优化控制脉冲的作用是实现单重态的制备与转化；CW与梯度场的结合可以保留单重态，并去除其它相干态. (b) OCI脉冲作用期间幅度随脉冲作用时间的变化. (c) OCI脉冲作用期间相位随脉冲作用时间的变化
Fig.2. (a) Optimal control (OC/OC′) pulse sequence for preparing and converting nuclear spin singlet state. The combination of CW and gradient field can remove spin coherent-states and retain nuclear spin singlet state. (b) The amplitude of OCI pulse versus time while OCI works; (c) The phase of OCI pulse versus time while OCI works
