Laser beam shaping with circular serrated apertures. II. Theory of the beam profile formation

Sizova Irina; Moskalev Timofey; Mikheev Leonid

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Laser beam shaping with circular serrated apertures. II. Theory of the beam profile formation

机译：用圆形锯齿状孔形成激光束。 II。梁轮廓形成的理论

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Propagation of an axially symmetrical beam through an apodizer comprising a circular serrated aperture and a spatial filter is considered on the basis of the parabolic equation solution. In Part II, the equation is solved for uniform and Gaussian beams with a flat wavefront propagating from the spatial filter pinhole to its exit. It is shown that serrations with complex shapes (for instance, cosine or parabolic) have no advantage over a simple triangular shape: practically the same beam profiles can be obtained with triangular serrations of slightly different size. (C) 2019 Optical Society of America

机译：基于抛物线方程溶液考虑轴向对称光束通过包括圆形锯齿状孔径和空间滤光器的吸引力的传播。在第二部分中，该等式用于均匀和高斯梁，具有从空间过滤器针孔传播到其出口的扁平波前。结果表明，具有复杂形状（例如余弦或抛物线）的锯齿在简单的三角形形状上没有任何优点：实际上可以通过略微不同的三角形锯齿获得相同的光束轮廓。（c）2019年光学学会

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《Applied optics》 |2019年第18期|共8页
作者
Sizova Irina; Moskalev Timofey; Mikheev Leonid;
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Russian Acad Sci Lebedev Phys Inst 53 Leninsky Prospect Moscow 119991 Russia;

Russian Acad Sci Lebedev Phys Inst 53 Leninsky Prospect Moscow 119991 Russia;

Russian Acad Sci Lebedev Phys Inst 53 Leninsky Prospect Moscow 119991 Russia;

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Laser beam shaping with circular serrated apertures. II. Theory of the beam profile formation

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