Chinese Journal of Lasers, Volume. 51, Issue 12, 1202417(2024)

Surface Roughness Optimization of 3D Structures Based on Peripheral Photoinhibition and Chemical Quenching Method (Invited)

Xiujun Gao1, Chenliang Ding1、*, Xiaoming Shen1, Gangyao Zhan1, Dazhao Zhu1, Cuifang Kuang1,2,3, and Xu Liu1,2,3
Author Affiliations
  • 1Research Center for Intelligent Chips and Devices, Zhejiang Lab , Hangzhou 311121, Zhejiang , China
  • 2State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, Zhejiang , China
  • 3ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311200, Zhejiang , China
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    Figures & Tables(4)
    Diagrams. (a) Principle diagram of peripheral photoinhibition; (b) principle diagram of quencher molecule
    Surface roughness characterization under peripheral photoinhibition. (a) Scanning electron microscopy (SEM) image of the line written at the speed of 1000 μm/s, where the left part is the written line with a single Gaussian excitation laser and the right part is the written line with Gaussian excitation laser and donut-shaped depletion laser; (b) the shape of excitation and depletion laser focus in the x-z plane measured by scanning a 150 nm diameter gold bead; (c) SEM image of the flat disk written with a single Gaussian excitation laser; (d) SEM image of the flat disk written with single Gaussian excitation laser and 0-π phase mask depletion laser; (e) AFM image of the flat disk written without the 0-π phase mask depletion laser; (f) AFM image of the flat disk written with the 0-π phase mask depletion laser
    Surface roughness characterization under the effect of quencher. (a) Energy level diagram of photoinitiator after photoexcitation with quencher; (b) SEM image of the written linein DETC photoresist with single Gaussian excitation laser at 1000 μm/s; (c) SEM image of the written linein DETC+BTPOS photoresist with single Gaussian excitation laser at 1000 μm/s; (d) SEM image of the written diskin DETC photoresist; (e) SEM image of the written diskin DETC+BTPOS photoresist; (f) AFM image of the written diskin DETC+BTPOS photoresist
    Surface roughness characterization under both effects. (a) SEM image of the micro-len written with a single Gaussian excitation laser in DETC photoresist; (b) SEM image of the micro-len written with single Gaussian excitation laser and 0-π phase mask depletion laser in DETC+BTPOS photoresist; (c) AFM image of the flat disk written with single Gaussian excitation laser and 0-π phase mask depletion laser in DETC+BTPOS photoresist; (d)‒(e) AFM images of the top of the micro-len
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    Xiujun Gao, Chenliang Ding, Xiaoming Shen, Gangyao Zhan, Dazhao Zhu, Cuifang Kuang, Xu Liu. Surface Roughness Optimization of 3D Structures Based on Peripheral Photoinhibition and Chemical Quenching Method (Invited)[J]. Chinese Journal of Lasers, 2024, 51(12): 1202417

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    Paper Information

    Category: Laser Micro-Nano Manufacturing

    Received: Jan. 31, 2024

    Accepted: Apr. 1, 2024

    Published Online: Jun. 3, 2024

    The Author Email: Ding Chenliang (dingcl@zhejianglab.com)

    DOI:10.3788/CJL240560

    CSTR:32183.14.CJL240560

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