考虑光镊效应的飞秒激光双光子加工线宽

童唯扬; 王正岭

doi:10.11884/HPLPB201830.170294

考虑光镊效应的飞秒激光双光子加工线宽

doi: 10.11884/HPLPB201830.170294

童唯扬,
王正岭^,

江苏大学理学院, 江苏镇江 212013

基金项目:

江苏省自然科学基金项目 BK20161342

江苏省“六大人才高峰”高层次人才项目 GDZB-018

江苏省高校自然科学研究重大基金项目 15KJA140001

详细信息

作者简介:
童唯扬(1993—)，男，硕士研究生, 从事飞秒激光与物质相互作用及双光子加工等研究工作; 434552776@qq.com

通讯作者:
王正岭(1971—)，男，博士，从事微纳米光学与原子光学研究工作; zlwang@ujs.edu.cn

中图分类号: TN305
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出版历程
- 收稿日期: 2017-07-15
- 修回日期: 2017-11-06
- 刊出日期: 2018-03-15

Linewidth of femtosecond laser two-photon processing considering optical tweezers

Tong Weiyang,
Wang Zhengling^,

Faculty of Science, Jiangsu University, Zhenjiang 212013, China

摘要

摘要: 采用自由基浓度起伏理论结合光镊集聚效应，理论研究了飞秒激光双光子加工的线宽问题。根据双光子光聚合过程中自由基浓度随时间变化的关系，考虑光镊效应对自由基分布范围的影响，得到了飞秒激光双光子加工线宽的表达式。研究了线宽随扫描速度与激光功率的变化关系，并讨论了不同光引发剂对线宽的影响。得到了以自由基浓度起伏为基础，并考虑光镊效应的双光子加工线宽表达式，该结果与实验结果相符。研究结果为飞秒激光双光子加工的研究提供了新的思路，为光镊集聚效应对线宽影响的实验研究提供了理论依据。
- 飞秒激光 /
- 双光子 /
- 线宽 /
- 自由基浓度 /
- 光镊效应
Abstract: In this paper, the linewidth of femtosecond laser two-photon polymerization is studied by the theory of free radical density and the effect of optical tweezers. Based on the relationship between free radical density and time in the process of two-photon polymerization, the expression of linewidth of two-photon femtosecond laser processing is deduced considering the effect of optical tweezers. The relationship of linewidth with scanning speed and laser power is studied and the influence of different light initiators on the linewidth is also discussed. The theoreticial result agrees well with the experimental one in the literature. The result of this paper gives a new idea for the study of femtosecond laser two-photon processing, and provides a theoretical formula for the study of the influence of optical tweezers on linewidth.
- femtosecond laser /
- two-photon /
- linewidth /
- free radical density /
- optical tweezers

HTML全文

图 1 自由基浓度的径向分布与脉冲次数的变化关系

Figure 1. Relationship between free radical density and pulse number

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图 2 线宽随扫描速度和激光功率的变化关系

Figure 2. Linewidth varies with scanning speed and laser power

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图 3 考虑不同条件下飞秒激光光镊效应对于加工线宽的影响

Figure 3. Effect of optical tweezers on the processing line width under different conditions

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图 4 考虑光镊效应的线宽随扫描速度和激光功率的等值线图

Figure 4. Contour of linewidth with scanning speed and laser power considering optical tweezers

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