多波分散调节模式锁定 (DTML) 的综合理论模型,用于扫源OCT.
Optics express
|November 11, 2025
概括
在扫源OCT (SS-OCT) 中,多波分散调节模式锁定 (DTML) 的新理论模型使得成像速度更快. 这一进步允许在近1MHz的扫描速率下进行高分辨率的OCT成像.
科学领域:
- 光学工程是指光学工程.
- 生物医学成像技术 生物医学成像技术
- 激光物理 激光物理
背景情况:
- 扫描源光学连贯性断层扫描 (SS-OCT) 是一个关键的成像模式.
- 分散调节模式锁定 (DTML) 为高速SS-OCT提供了潜力.
- 现有的DTML模型缺乏全面的理论框架来实现多声操作.
研究的目的:
- 介绍在横扫源OCT (SS-OCT) 中多波分散调模式锁定 (DTML) 制度的第一个全面的理论模型.
- 详细说明波长调整原理,推导调整带宽公式,并提供缩放指南.
- 为了比较单调DTML,多调DTML和频率分割复杂化 (FDML) 腔中的光场存储.
主要方法:
- 为多调DTML开发一个全面的理论模型.
- 调整带宽公式的推导和缩放指南.
- 在不同的腔体配置 (单调DTML,多调DTML,FDML) 中对光场进行比较分析.
主要成果:
- 在SS-OCT中建立了多调DTML的理论模型.
- 该模型提供了对调整带宽和连贯性性能权衡的见解.
- 实验验证表明,OCT成像指尖和视网膜的扫描速率为~1 MHz,调节带宽为30 nm.
结论:
- 多调DTML模式为实现超高速SS-OCT提供了可行的途径.
- 该理论模型提供了优化DTML腔设计的基本准则.
- 实验结果证实了多调DTML在快速,高分辨率的生物医学成像方面的潜力.
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