纯相位型轴锥透镜的衍射光学元件设计  

Design of diffractive optical element of an pure phase axicon

作　　者：朱鹏强 李新忠[1] 马海祥[1] 高敬敬[1] 周小龙[1] 孙晓清[1] 

机构地区：[1]河南科技大学物理工程学院,河南洛阳471023

出　　处：《激光杂志》2017年第1期1-4,共4页Laser Journal

基　　金：国家自然科学基金(61205086;11404097;11504091);瞬态光学与光子技术国家重点实验室开放基金(SKLST201203);河南科技大学教改项目(2015YBZD-012);河南科技大学大学生研究训练计划(SRTP)项目(2015081)

摘　　要：基于空间光调制器利用Gerchberg-Saxton算法设计了一种衍射光学元件-轴锥透镜。首先,基于惠更斯-菲涅尔原理,利用G-S迭代算法设计出轴锥透镜的掩模相位图;然后,写入空间光调制器作为全息衍射体;最后,数值仿真和实验进行对比分析。结果显示:与实际轴锥透镜相比,设计的轴锥透镜衍射元件可产生性能相同的贝塞尔光束;并且验证了其具有可在线实时修改元件参数的优点。因此,该方法可应用于阵列化、集成化以及拥有复杂轮廓的光学元件设计领域。Based on spatial light modulator and Gerchberg - Saxton algorithm, the axicons, a diffractive optical element, is designed. First of all, based on the huygens-fresnel principle, the phase mask plate of axicon are designed by G-S iterative algorithm. Then, the phase mask plate is wrote to spatial light modulator as holographic diffraction grating. Finally, the results of numerical simulation and experimental investigation are compared and analyzed. The results show that the achieved bessel beam coincides with the actual axicon results, and the advantage of convenient for on-line parameter correction was verified. Hence, the method can be widely used in the design field of multi-array, integrated and with complex contour optical element.

关 键 词：轴锥透镜 G-S算法 空间光调制器 贝塞尔光束 

分 类 号：TN209[电子电信—物理电子学]