增强的光线聚焦在散射介质内部,有形超声波
Blanca Mestre-Torà1, Martí Duocastella2,3
1Department of Applied Physics, Universitat de Barcelona, C/Martí i Franquès 1, 08028, Barcelona, Spain.
Scientific reports
|July 17, 2023
概括
超声波可以提高七倍的光聚焦在生物组织等散射介质中的光聚焦. 这一突破为显微镜和激光处理中的应用提供了更深的光透.
科学领域:
- 光学和光子学 在光学和光子学.
- 生物医学工程 生物医学工程
- 声学 声学 在声学方面
背景情况:
- 在异质介质中的光散射限制了在激光材料处理和显微镜等领域的应用.
- 克服光散射的现有方法通常会损害空间/时间分辨率或增加侵入性.
研究的目的:
- 通过使用超声波来展示一种新的方法,用于增强光线聚焦在杂的介质内.
- 研究贝塞尔式超声波配置文件在调节光学特性和指导光的潜力.
主要方法:
- 利用贝塞尔式超声波局部调节杂介质的光学特性.
- 采用波光学和蒙特卡洛模拟来支持实验发现.
- 集成的超声波调制与点对点扫描用于图像重建.
主要成果:
- 与传统的外部光学方法相比,在光线聚焦方面实现了七倍的增强.
- 在的介质中成功重建了样本的图像,光密度高达15.
- 通过近乎即时的超声波生成,证明了实时光控制的可行性.
结论:
- 超声波调制提供了一种有希望的,非侵入性的方法来克服复杂介质中的光散射挑战.
- 这种技术在促进生物组织中的体内成像和基于激光的疗法方面具有重大潜力.
- 开发的方法为散射环境中的实时光学控制开辟了道路.
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