Ferrando Vicente, Giménez Fernando, Furlan Walter D, Monsoriu Juan A
Opt Express. 2015 Jul 27;23(15):19846-53. doi: 10.1364/OE.23.019846.
We present a new family of Zone Plates (ZPs) designed using the Thue-Morse sequence. The focusing and imaging properties of these aperiodic diffractive lenses coined Thue-Morse Zone Plates (TMZPs) are examined. It is demonstrated that TMZPs produce a pair of self-similar and equally intense foci along the optical axis. As a consequence of this property, under broadband illumination, a TMZP produces two foci with an extended depth of focus and a strong reduction of the chromatic aberration compared with conventional periodic ZPs. This distinctive optical characteristic is experimentally confirmed.
我们展示了一个使用图厄 - 摩尔斯序列设计的新型波带片（ZPs）家族。研究了这些被称为图厄 - 摩尔斯波带片（TMZPs）的非周期衍射透镜的聚焦和成像特性。结果表明，TMZPs沿光轴产生一对自相似且强度相等的焦点。由于这一特性，在宽带照明下，与传统的周期波带片相比，TMZP产生两个具有扩展焦深且色差大幅降低的焦点。这一独特的光学特性得到了实验证实。
