作 者: ;
机构地区: 株洲师范高等专科学校物理与电子工程系
出 处: 《株洲师范高等专科学校学报》 2003年第2期1-5,12,共6页
摘 要: 用标量Kirchhoff-Huyghons衍射积分导出Bessel-Gauss光束,Bessel光束-Gaussial光束圆孔衍射场轴向及横向场强分布的解析表达式,比较了它们的传播特性,探讨了Bessel-Gauss光束在无衍射传播距离上其传播行为依赖于孔半径,束腰参数以及横向波数。 By using the scalar KirchhoffHuygens integral,analytic expressions were obtained for both axial and transverse intensity distributions of BesselGauss, Bessel,and Gaussial beams diffracted by a circular aperture.The propagation characteristics of these beams were compared.And it was pointed out that the BesselGauss beam performance in a diffractionfree distance is dependent on the aperture radius,the beam waist parameter,and the transverse wave number.