一种基于相位差滤波过程的新型连续相位板设计方法
摘要
连续相位板是高强度激光系统束匀滑技术中的关键一环,其作用是改变激光聚焦焦斑的形态。基于Gerchberg-Saxton算法,本文提出了一种新的连续相位板设计方法,通过对相位差进行滤波,避免了传统设计方法中远场缓变的要求及复杂的解相过程,从而达到节约计算时间,简化编程的目的。同时通过控制相位差滤波参数,能够对所设计的连续相位板形态进行一定调控。
引文
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[2]R.W.Gerchberg,"A practical algorithm for the determination of phase from image and diffraction plane pictures,"Optik 35,237-250(1972).
[3]H.Aagedal,M.Schmid,T.Beth,S.Teiwes,and F.Wyrowski,"Theory of speckles in diffractive optics and its application to beam shaping,"Journal of Modern Optics 43,1409-1421(1996).
[4]Y.Lin,T.J.Kessler,and G.N.Lawrence,"Design of continuous surface-relief phase plates by surface-based simulated annealing to achieve control of focal-plane irradiance,"Opt.Lett.21,1703-1705(1996).
[5]S.Wen,J.Hou,C.Yang,H.Yan,Q.Shi,and L.Zhou,"Design and Fabrication of Large-Aperture Continuous Phase Plates for Back Lighting,"Laser&Optoelectronics Progress 48,052201-052201-052201-052205(2011).
[2]R.W.Gerchberg,"A practical algorithm for the determination of phase from image and diffraction plane pictures,"Optik 35,237-250(1972).
[3]H.Aagedal,M.Schmid,T.Beth,S.Teiwes,and F.Wyrowski,"Theory of speckles in diffractive optics and its application to beam shaping,"Journal of Modern Optics 43,1409-1421(1996).
[4]Y.Lin,T.J.Kessler,and G.N.Lawrence,"Design of continuous surface-relief phase plates by surface-based simulated annealing to achieve control of focal-plane irradiance,"Opt.Lett.21,1703-1705(1996).
[5]S.Wen,J.Hou,C.Yang,H.Yan,Q.Shi,and L.Zhou,"Design and Fabrication of Large-Aperture Continuous Phase Plates for Back Lighting,"Laser&Optoelectronics Progress 48,052201-052201-052201-052205(2011).