Laser beam quality, entropy and the limits of beam shaping

被引：33

作者：

Graf, T

Balmer, JE

机构：

[1] Institute of Applied Physics, University of Bern, CH-3012 Bern

来源：

OPTICS COMMUNICATIONS | 1996年 / 131卷 / 1-3期

关键词：

D O I：

10.1016/0030-4018(96)00249-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The paper presents a thermodynamical and quantum-statistical analysis of the electromagnetic field with the aim of deriving the entropy of partially coherent thermal and laser beams. Together with the second law of;thermodynamics the knowledge of the entropy allows the discussion of the limits of beam shaping. It will be shown that in many cases a multi-(transversal) mode laser beam can be shaped into a multi-(longitudinal) mode beam with M(2) = 1.

引用

页码：77 / 83

页数：7

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