Holographic Gaussian to flat-top beam shaping
Holographic Gaussian to flat-top beam shaping
复制标题
DOI：
10.1117/1.1613956
复制
发表时间：
2003-11
影响因子：
1.3
通讯作者：
M. Miler;I. Aubrecht;J. Pala
中科院分区：
文献类型：
--
作者：
M. Miler;I. Aubrecht;J. Pala
分析了高斯光栅束的记录和发展，并对其在光束整形中的应用进行了论证。结果表明，仅使用全息记录的光栅，就可以获得将高斯光束变换为四阶超高斯光束的衍射整形器，甚至更多。全息整形器是由自然尺寸的激光干涉而成的矩阵元素，可用于自然尺寸的激光光束的平顶整形。如果需要对波束进行适当的整形，则可以在矩阵中的许多实现中或在一组这样的矩阵中找到所需的整形器，而无需任何计算或初步测量。
Recording and development of Gaussian gratings are analyzed, and utilizing these gratings for beam shaping is demonstrated. It is shown that by using only holographic recordings of gratings, diffractive shapers for transformation of Gaussian beams to super-Gaussian beams of the fourth degree, and more as well, can be obtained. Holographic shapers are fabricated by interference of natural-size laser beams as elements of a matrix, which can be used for flat-top beam shaping of laser beams of natural size. If appropriate shaping of a beam is demanded, the necessary shaper can be found among a number of realizations in the matrix, or in a set of such matrices, without any calculations or preliminary measurements.