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Common-path interferometric single-pixel photothermal imaging
DOI:10.1016/j.optcom.2025.132413.png)
摘要
En 中文
光热成像是一种无标记且化学特异性技术,但其常受限于光学复杂性和环境敏感性。我们提出了一种共路干涉单像素光热成像技术(CISPI),其中800 nm飞秒激光被分为泵浦光和探测光束。探测光束经DMD调制后,产生同向传播的结构光和参考光,两个单像素探测器记录干涉信号以重构幅度、实部和包裹相位图像。紧凑的共路设计确保了高稳定性和抗环境扰动能力。针对不同溶液的光热相位演化进行了表征,并监测了不同溶液浓度和泵浦功率下的实时相位变化,两者均显示出强相关性。CISPI在64×64像素下实现了57 lp/mm的空间分辨率和0.49 fps的成像速率。实验结果表明,CISPI在光热相位成像方面具有鲁棒性。CISPI能够用于材料科学中的光热动力学表征以及生物医学中的无标记细胞成像。
Keyword:
Photothermal imaging
Single-pixel phase imaging
Common-path interference
期刊
IF:
2.5
论文数:
606
被引数:
2.7W
机构
暂无机构信息
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