In-Plane Propagation of Cavity Polaritons in Quantum Semiconductor Microcavity
LIU Wen-Kai1, LIN Shi-Ming1, ZHANG Cun-Shan2
1State Key Laboratory on Integrated Optoelectronics,
Institute of Semiconductor, Chinese Academy of Sciences, Beijing 100083
2College of Electricity Information, Hebei University of Technology, Tianjing 300130
In-Plane Propagation of Cavity Polaritons in Quantum Semiconductor Microcavity
LIU Wen-Kai1;LIN Shi-Ming1;ZHANG Cun-Shan2
1State Key Laboratory on Integrated Optoelectronics,
Institute of Semiconductor, Chinese Academy of Sciences, Beijing 100083
2College of Electricity Information, Hebei University of Technology, Tianjing 300130
Abstract： Considering that the coupling among the heavy-hole exciton, light-hole exciton and the cavity photon can form bipolaritons in a quantum semiconductor microcavity, we calculate the group velocities of the cavity polaritons at different incident angle s using the coupling model of three harmonic oscillators. The result indicates that the group velocities of the low and middle branches of the cavity polaritons have extrema, but the group velocities of the high branch increase with the increasing incident angle.
2002, Vol. 19 
