作者单位: | [1]PhotonicCenter,CollegeofPhysics,NankaiUniversity,Tianjin300071,China [2]DepartmentofPhysics,BeijingNormalUniversity,Beijing100875,China [3]DepartmentofPhysics,InnerMongoliaNormalUniversity,Huhehaote010022,China [4]DepartmentofAutomaticEngineering,TianjinInstituteofTechnology,Tianjin300191,China |