【摘要】 由两个位相型衍射光学元件构成的光学变换系统可以实现一般圆对称光束的波前变换。在只需满足菲涅耳衍射近似条件下,采用稳相法与输入输出法相结合,可以设计出具有较高精度的光学变换系统。更多还原

【Abstract】 A phase-only optical system can implement the wavefront transformation from a rotational symmetric beam to another rotational symmetric beam, which is composed of two phase-only diffraction elements. Under the Fresnel diffraction approximation, the optical transform system can be designed with the aid of the stationary phase method and the input-output method with a high accuracy.更多还原