Properties of the two-pulse photon echo signal
Cheng Li , Xiang-yang Yu
Optoelectronics Letters ›› 2010, Vol. 6 ›› Issue (2) : 152 -156.
Properties of the two-pulse photon echo signal
The optical Bloch equations (OBEs), describing the interaction between the atom and the light field in an inhomogeneously broadened two-level system, are solved by a numerical procedure, which uses an implicit fourth-order Runge-Kutta (RK4) method.Then the properties of the two-pulse photon echo signal are analyzed. The numerical simulation results show that the two-pulse photon echo signal can be strongly modulated by the inhomogeneous linewidth (IL) for the system. In comparison with the classical solution derived under approximate conditions, the highest-intensity photon echo requires the first input pulse area to be greater than 0.5 π for the bigger IL. The attenuation characteristics of photon echo intensity are also calculated and discussed.
Pulse Interval / Transverse Relaxation Time / Bloch Vector / Photon Echo / Approximate Condition
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