State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Opt Lett. 2012 Jun 15;37(12):2397-9. doi: 10.1364/OL.37.002397.
Biomimetic compound eyes with a high numerical aperture on a curved surface were successfully fabricated by intelligent integration of traditional top-down and bottom-up micro- and nanofabrication methods together. In addition, the new hybrid micro- and nanofabrication method allows us to fabricate the antireflective nanostructures on each ommatidium to increase its vision sensitivity by improving the light transmission. The fabricated compound eye was optically characterized and was shown to have a numerical aperture of 0.77 for each ommatidium. Furthermore, it is shown that the transmission of the compound eye can be improved by 2.3% for the wavelength of 632.8 nm and a clearer image can be formed by the fabricated compound eye with antireflective nanostructures compared with that without antireflective nanostructures. In addition, the developed hybrid manufacturing method can be adapted to the fabrication of other complex micro- and nanodevices for photonics or other research areas.
通过智能集成传统的自上而下和自下而上的微纳制造方法，成功地在曲面上制造出具有高数值孔径的仿生复眼。此外，新的混合微纳制造方法允许我们在每个小眼上制造抗反射纳米结构，通过提高光传输来提高其视觉灵敏度。所制造的复眼进行了光学特性表征，结果表明每个小眼的数值孔径为 0.77。此外，结果表明，对于 632.8nm 的波长，复眼的透过率可以提高 2.3%，并且与没有抗反射纳米结构的复眼相比，具有抗反射纳米结构的复眼可以形成更清晰的图像。此外，所开发的混合制造方法可以适应光子学或其他研究领域的其他复杂微纳器件的制造。
