The Parametric Resonance of Confined Acoustic Phonons and Confined Optical Phonons by an External Electromagnetic Wave in Cylindrical Quantum Wires with an Infinite Potential

摘要：

　　The parametric resonance of confined acoustic phonons and confined optical phonons by an external electromagnetic wave in cylindrical quantum wires with an infinite potential is studied by using a set of quantum kinetic equations for confined phonons.The analytical expression of the threshold amplitude Ethreshold of the field in a cylindrical quantum wires with an infinite potential is obtained.The formula of Ethreshold contains two quantum numbers(m,k)characterizing confined phonons.The dependence of the threshold amplitude Ethreshold on the temperature T of the system,the wave vector →qz,the frequency Ω of an external electromagnetic waves and the radius of the wires R is studied.Numerical computations and graphs are performed for GaAs-GaAsAl cylindrical quantum wires.The results are compared with the case of unconfined phonons.

作者: N.Q.Bau L.T.Hung L.T.T.Phuong

作者单位: Department of Physics,Viet Nam National University Hanoi,334 Nguyen Trai,Hanoi,Vietnam University of Education,Viet Nam National University Hanoi,144 Xuan Thuy,Hanoi,Vietnam College of Education,Hue University,34 Le Loi,Hue City,Vietnam

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)

会议地点: 苏州

会议语种:英文

页码: 1457-1461

在线出版日期: 2011-09-01（万方平台首次上网日期，不代表论文的发表时间）