论文标题
硅纤维素衍射光学元件成像斐波那契
Fibonacci terahertz imaging by silicon diffractive optics
论文作者
论文摘要
在连续波模式下，通过实验中采用硅衍射区（SDZP），证明了斐波那契或双焦晶曲霉（THZ）成像。同时记录在两个不同平面中的图像以0.6 THz频率显示，并具有波长的空间分辨率。将斐波那契镜的多聚光成像操作与常规硅相区块的性能进行比较。讨论了空间曲线和焦点深度特征，从0.3 THz到0.6 THz的频率变化。揭示了实验结果与仿真数据之间的良好一致性。
Fibonacci or bifocal terahertz (THz) imaging is demonstrated experimentally employing silicon diffractive zone plate (SDZP) in a continuous wave mode. Images simultaneously recorded in two different planes are exhibited at 0.6 THz frequency with the spatial resolution of wavelength. Multi-focus imaging operation of the Fibonacci lens is compared with a performance of the conventional silicon phase zone plate. Spatial profiles and focal depth features are discussed varying the frequency from 0.3 THz to 0.6 THz. Good agreement between experimental results and simulation data is revealed.
