Laser beam intensity profile transformation with a fabricated mirror

被引：24

作者：

Nemoto, K

Fujii, T

Goto, N

Takino, H

Kobayashi, T

Shibata, N

Yamamura, K

Mori, Y

机构：

[1] NIKON INC,SAGAMIHARA,KANAGAWA 228,JAPAN

[2] OSAKA UNIV,FAC DENT,DEPT PRECIS SCI & TECHNOL,SUITA,OSAKA 565,JAPAN

来源：

APPLIED OPTICS | 1997年 / 36卷 / 03期

关键词：

laser; beam forming; intensity transformation; hologram; plasma chemical vaporization machining; graded-phase mirror; coordinate transformation; wave-front correction;

D O I：

10.1364/AO.36.000551

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A nonaxisymmetric mirror is designed by the same method as a computer-generated hologram for laser beam intensity profile transformation and is fabricated by plasma chemical vaporization machining. We successfully transformed a circular Gaussian beam of a He-Ne laser into a rectangular uniform beam maintaining spatial coherence and using a nonaxisymmetric surface profile mirror. There are ripples in the intensity profile of the transformed rectangular beam. These ripples in the intensity profile result from small ripples on the mirror surface. These results show that we can perform coordinate transformation using these fabricated mirrors, which has so far been possible only by using computer-generated holograms. (C) 1997 Optical Society of America.

引用

页码：551 / 557

页数：7

共 22 条

[1] HOLOGRAPHIC CONVERSION OF A GAUSSIAN-BEAM TO A NEAR-FIELD UNIFORM BEAM [J].