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引入了高阶双曲余弦 高斯光束 ,结果表明这类光束在一定参数条件下呈现平顶光束特征。这类光束可用偏心高斯光束或双曲余弦 高斯光束的相干叠加而得到 ,因而也是傍轴波动方程的解 ,并讨论了它们在一阶光学系统中的传播性质。
The hyperbolic cosine Gaussian beams are introduced. The results show that this kind of beams exhibit flattened beam characteristics under certain parameters. Such beams can be obtained by the coherent addition of eccentric Gaussian beams or hyperbolic cosine beams and hence also the solutions of the paraxial wave equations and their propagation properties in first-order optical systems.