supported by the National Natural Science Foundation of China (Grant No. 10574011)
The interaction between exciton and confined longitudinal optical (LO) phonons, interface optical (IO) phonons in an asymmetric Ga1-xAlxAsIGaAslGao.TAlo.3As square quantum well is investigated. By applying the LLP...
Project supported by the National Natural Science Foundation of China (Grant No.10574011);the Foundation for Innovative Research Groups Foundation of Beijing Normal University
Nonlinearity has a crucial impact on the symmetry properties of dynamical systems. This paper studies a one-dimensional mixed Klein-Gordon/Fermi Pasta-Ulam diatomic chain using the expanded rotating plane-wave approxi...
Project supported by the National Natural Science Foundation of China (Grant No.10574011)
The irradiance of an elliptic Gaussian beam that is high enough to excite high-order nonlinear refraction effect is used to calculate the normalized on-axis transmittance function in the z-scan technique by introducin...
Project supported by the National Natural Science Foundation of China (Grant No 10574011);the Foundation for Researching Group by Beijing Normal University
In this paper we study the existence and stability of two-dimensional discrete gap breathers in a two-dimensional diatomic face-centered square lattice consisting of alternating light and heavy atoms, with on-site pot...
Project supported by the National Natural Science Foundation of China (Grant No 10574011);Natural Science Foundation of Heilongjiang Province,China (Grant No A200506)
We study a two-dimensional (2D) diatomic lattice of anhaxmonic oscillators with only quartic nearest-neighbor interactions, in which discrete breathers (DBs) can be explicitly constructed by an exact separation of...