Analytic solutions of Bloch equations with phase term for two-pulse photon echo by the phase modulation pulses  

作　　者：MA Xiu-rong DENG Wen-xing SHAN Yun-long 马秀荣;邓文星;单云龙(Communication Technology,Ministry of Education,School of Electrical and Electronic Engineering,Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]Communication Technology,Ministry of Education,School of Electrical and Electronic Engineering,Tianjin University of Technology,Tianjin 300384,China

出　　处：《Optoelectronics Letters》2021年第2期118-122,共5页光电子快报（英文版）

基　　金：This work has been supported by the Tianjin Research Program Application Foundation and Advanced Technology(No.15JCQNJC01100)。

摘　　要：In this paper, a method is proposed to obtain the analytical solutions of Bloch equations with phase term by using the elementary matrix transform. The effect of the initial phase on the components of Bloch vector is discussed. The result shows that by considering the initial phase of the input pulse, the amplitudes of the in-phase component and the in-quadrature component can be dynamically controlled, meanwhile the population inversion is almost immune to the initial phase. Additionally, the signal electric field expressions of the phase effect of two-pulse photon echo(2 PE) is derived, which is also modulated by the initial phase.

关 键 词：transform. phase. BLOCH 

分 类 号：O413[理学—理论物理] TN918[理学—物理]