摘要
本文从较直观的角度出发,把贝塞尔光理解为-对趋向于传播轴线和离开轴线的锥形波的叠加,将腔两端的镜面理解为用于改变光场位相的器件,讨论用轴棱锥设计谐振腔以产生贝塞尔光,我们发现在所设计的腔中振荡的光是受钟形函数调制的锥形波,其模式与贝塞尔一高斯光相似。并且我们所得到的结论与福克斯一厉数值迭代法验证的结果是一致的。
In a simple picture, a Bessel beam can be decomposed into a pair of conical waves, one slanting inwards towards the axis and the other expanding away from it , and the end mirrors are considered as being used to conjugate the radial phase of the field that oscillate in a resonator . In this paper, we discuss the design of a Bessel r^ona^r based on an axicon, we find that the field oscillating inside the resonator is a conical waves modulated by a bell - shaped function. The modes of the cavity have similar features to Bessel - Gauss beams. The conclusions consist with the result simulated with the rigorous Fox - Li algorithm.
出处
《激光杂志》
CAS
CSCD
北大核心
2007年第3期9-10,共2页
Laser Journal
基金
国家自然科学基金项目(6047741)
福建省自然科学基金项目(A0410017)
