Considerable theoretical progress has been made in the study of gap solitons in nonlinear periodic media and anharmonic diatomic lattices. In this paper we investigate the soliton excitations in a damped and parametrically driven nonlinear diatomic lattice. An experiment for observing gap solitons is suggested.
部门归属
acad sinica,int ctr mat phys,shenyang 110015,peoples r china. e china normal univ,dept phys,shanghai 200062,peoples r china.;huang, gx (reprint author), china ctr adv sci & technol,world lab,pob 8730,beijing 100080,peoples r china
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