• Chinese Journal of Lasers
  • Vol. 44, Issue 6, 602002 (2017)
Jiang Jun1、*, Liu Jinqiao2, Xu Ying1, and Yu Yanhao1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3788/cjl201744.0602002 Cite this Article Set citation alerts
    Jiang Jun, Liu Jinqiao, Xu Ying, Yu Yanhao. Laser Direct Writing Technique of Diffraction Optical Element on Curved-Surface Substrate[J]. Chinese Journal of Lasers, 2017, 44(6): 602002 Copy Citation Text show less

    Abstract

    Femtosecond laser direct writing (FsLDW) has been widely applied in the field of mico-nano fabrication for its advantages such as excellent three-dimensional processing ability, high spatial resolution and low additional damage. However, there are contradictions between machining efficiency, machining area and machining accuracy in the conventional FsLDW. In order to realize high speed, large area and high precision in the process of laser micro-nano fabrication, we have built a new FsLDW system based on polar coordinates, which is composed of large scale horizontal linear stages and high speed rotary stage. The approaches for the alignment of axisymmetric sample′s center and the calibration of surface curvature have been investigated based on the proposed system, and a multilevel three-dimensional structure has been fabricated on a curved surface. Finally, a diffractive circle grating structure with diameter of 10 mm has been fabricated on curved surface of the lens, and the femtosecond laser fabrication of large area three-dimensional structure with high speed, large scale and high precision has been realized. The research provides strong technical support for the fabrication of high performance hybrid refractive-diffractive optical element.
    Jiang Jun, Liu Jinqiao, Xu Ying, Yu Yanhao. Laser Direct Writing Technique of Diffraction Optical Element on Curved-Surface Substrate[J]. Chinese Journal of Lasers, 2017, 44(6): 602002
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