复宗量双曲余弦-高斯光束的束传输因子与传输性质(英文)

Beam propagation factor and propagating properties of complex-argument cosh-Gaussian beams

引入了一类新的复参数双曲余弦 -高斯光束 ,给出了这类光束的束传输因子 (M2 -因子 )的解析表达式 ,并就这类光束在一阶傍轴光学系统中的传输特性进行了讨论。与实参数双曲余弦 -高斯光束相比 ,这类复参数双曲余弦 -高斯光束呈现出了新特性。

An alternative set of cosh-Gaussian (ChG) beams whose parameter in cosh part is complex, termed as complex-argument ChG beams, is introduced. Its beam propagation factor (M 2-factor) has been derived and analysed physically. Then, the propagation of complex-argument ChG beams passing through a paraxial optical ABCD system has been studied detail. Contrast to the usual ChG beams, the complex-argument ChG beams possess some interesting features.