中国物理B ›› 2007, Vol. 16 ›› Issue (9): 2709-2715.doi: 10.1088/1009-1963/16/9/035
周国泉, 陈亮, 储修祥
Zhou Guo-Quan(周国泉) †, Chen Liang(陈亮), and Chu Xiu-Xiang(储修祥)
摘要: Based on the vectorial structure of electromagnetic beam and the method of stationary phase, the analytical structure of Hermite Gaussian beam in far field is presented. The structural energy flux distributions are also investigated in the far field. The structural pictures of some Hermite Gaussian beams are depicted in the far field. As the structure of Hermite Gaussian beam is dominated by the transverse mode numbers and the initial transverse Gaussian half width, it is more complex than that of Gaussian beam. The ratios of the structural energy fluxes to the whole energy flux are independent of the transverse mode numbers and the initial transverse Gaussian half width. The present research reveals the internal vectorial structure of Hermite Gaussian beam from other viewpoint.\
中图分类号: (Classical electromagnetism, Maxwell equations)