排序方式: 共有30条查询结果,搜索用时 125 毫秒
21.
在庞加莱球的基础上,对原偏振模色散的测量方法进行了理论分析.研究表明,原方法属于间接测量,在测量二阶偏振模色散中存在明显不足.一阶偏振模色散测量的误差影响二阶偏振模色散的测量,间接测量降低了二阶偏振模色散的测量准确度.提出了一种二阶偏振模色散测量的新方法,保证了测量准确度,并通过实验中的统计结果得到证实. 相似文献
22.
23.
24.
25.
26.
An effective nonlinear response of a nonlinear composite with spherical coated inclusions randomly embedded in a host medium under the action of an external AC electric field,E a=E 1 sin(ωt) + E 3 sin(3ωt),is investigated using a perturbation method.The local potentials of the composite at higher harmonics are given both in the region of local inclusion particles and in the local host region under the external AC electric field.All effective nonlinear responses of the composite and the relationship between the effective nonlinear responses at the fundamental frequency and third harmonics are also studied for spherical coated inclusion in a dilute limit. 相似文献
27.
28.
29.
30.