FEMTOSECOND TRANSILLUMINATION OPTICAL COHERENCE TOMOGRAPHY
FEMTOSECOND TRANSILLUMINATION OPTICAL COHERENCE TOMOGRAPHY
复制标题
DOI：
10.1364/ol.18.000950
复制
发表时间：
1993-06-15
期刊：
影响因子：
3.6
通讯作者：
SWANSON, EA
中科院分区：
文献类型：
--
作者：
HEE, MR;IZATT, JA;SWANSON, EA
我们描述了一种新技术，即飞秒的跨闪动光学相干断层扫描，用于嵌入散射介质中的物体的时间门控成像。使用飞秒脉冲和相干杂作检测的光纤干涉仪进行时间门控以实现130-DB的动态范围。共聚焦成像布置为乘散射光提供了其他空间歧视。到时间门控弹道光子，我们在介质中获得了吸收物体的125个mum分辨率图像27散射平均自由路径厚。我们根据量子噪声考虑因素获得了弹道成像厚度的基本限制。
We describe a new technique, femtosecond transillumination optical coherence tomography, for time-gated imaging of objects embedded in scattering media. Time gating is performed with a fiber-optic interferometer with femtosecond pulses and coherent heterodyne detection to achieve a 130-dB dynamic range. A confocal imaging arrangement provides additional spatial discrimination against multiply scattered light. By time gating ballistic photons, we achieve 125-mum-resolution images of absorbing objects in media 27 scattering mean free paths thick. We derive a fundamental limit on ballistic imaging thickness based on quantum noise considerations.