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)
Fig. 1. Diagrams. (a) Principle diagram of peripheral photoinhibition; (b) principle diagram of quencher molecule
Fig. 2. 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
Fig. 3. 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
Fig. 4. 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
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)
CSTR:32183.14.CJL240560