Hu Zhilin, Rollins Andrew M
1Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenve, Cleveland, Ohio 44106-7207, USA.
Opt Lett. 2007 Dec 15;32(24):3525-7. doi: 10.1364/ol.32.003525.
We describe Fourier domain optical coherence tomography equipped with a novel linear-in-wavenumber spectrometer. The presented device linearizes the spectral dispersion of the spectrometer in wavenumber using a specifically designed prism. The spectral linearity in wavenumber makes numerical interpolation into wavenumber unnecessary, reduces computing time, and furthermore results in improvement of the falloff of signal with image range inherent to frequency-domain optical coherence tomography imaging. Experiments demonstrate the improvement of the falloff and agree with the expected results from simulation.
我们描述了配备新型波数线性光谱仪的傅里叶域光学相干断层扫描技术。所展示的设备使用专门设计的棱镜在波数上使光谱仪的光谱色散线性化。波数上的光谱线性使得无需对波数进行数值插值，减少了计算时间，并且进一步改善了频域光学相干断层扫描成像中固有的信号随图像范围的衰减。实验证明了衰减的改善，并与模拟的预期结果相符。
