STEADY-STATE THERMAL SELF-FOCUSING OF LASER BEAMS.

被引：2

作者：

Sukhorukov, A.P.

Fel'd, S.Ya.

Khachatryan, A.M.

Shumilov, E.N.

机构：

来源：

Soviet Journal of Quantum Electronics (English translation of Kvantovaya Elektronika) | 1972年 / 2卷 / 02期

关键词：

SELF-FOCUSING;

D O I：

10.1070/QE1972v002n02ABEH004400

中图分类号：

学科分类号：

摘要：

Some aspects of the theory of thermal self-focusing of cw laser beams are considered. A geometrical-optics ray equation is derived for a nonlinear absorbing medium. This ray equation is used to construct the aberration pattern in thermal self-focusing. This structure of the focal region is also analyzed. A detailed discussion is given of the behavior of the field at the focus for a wide range of values of the absorption in the medium and the input power. The stability of steady-state thermal self-focusing is investigated and it is shown that self-focusing can be applied to real high-power beams without splitting them into separate filaments.

引用

页码：133 / 137