Adaptive optics assisted Fourier domain OCT with balanced detection
Adaptive optics assisted Fourier domain OCT with balanced detection
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具有平衡检测功能的自适应光学辅助傅立叶域 OCT
DOI：
10.1117/12.874805
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Meadway A
中科院分区：
文献类型：
--
作者：
Meadway A
分辨率和灵敏度是光学相干层析成像(OCT)的两个重要因素。自适应光学通过校正引起波前失真的像差来提高系统的分辨率。平衡检测通过去除多余的光子噪声在时间域OCT系统中得到了应用，但还没有在傅立叶域系统中使用，因为光谱仪中使用的相机在多余的光子噪声之前饱和成为一个问题。相机技术的进步意味着这种情况不再是这样，现在可以使用平衡检测来提高傅立叶域(FD)OCT系统的信噪比。提出了一种自适应光学增强的FD-OCT系统，并将其用于显示平衡检测所能提供的改进。评估了单摄像机检测和平衡检测的信噪比，并采集了活体视网膜图像，证明了平衡检测具有更好的图像质量。
Two factors are of importance to optical coherence tomography (OCT), resolution and sensitivity. Adaptive optics improves the resolution of a system by correcting for aberrations causing distortions in the wave-front. Balanced detection has been used in time domain OCT systems by removing excess photon noise, however it has not been used in Fourier domain systems, as the cameras used in the spectrometers saturated before excess photon noise becomes a problem. Advances in camera technology mean that this is no longer the case and balanced detection can now be used to improve the signal to noise ratio in a Fourier domain (FD) OCT system. An FD-OCT system, enhanced with adaptive optics, is presented and is used to show the improvement that balanced detection can provide. The signal to noise ratios of single camera detection and balanced detection are assessed and in-vivo retinal images are acquired to demonstrate better image quality when using balance detection.
使用“光谱雷达”进行光学相干断层扫描：通过短相干干涉测量对体积散射体进行快速光学分析
影响因子：
1.9
作者：
M. Bail;Gerd Haeusler;J. Herrmann;M. W. Lindner;R. Ringler
通讯作者：
R. Ringler
影响因子：
1.7
作者：
Ripandelli, G;Coppe, A M;Stirpe, M
通讯作者：
Stirpe, M
由于平衡接收器的不匹配，光学相干断层扫描中可实现的信噪比受到限制。
影响因子：
1.9
作者：
C. Rosa;A. Podoleanu
通讯作者：
A. Podoleanu