Analytical model of spectrometer-based two-beam spectral interferometry
Analytical model of spectrometer-based two-beam spectral interferometry
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DOI：
10.1364/ao.46.008499
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发表时间：
2007-12-10
期刊：
影响因子：
1.9
通讯作者：
Rollins, Andrew M.
中科院分区：
文献类型：
--
作者：
Hu, Zhilin;Pan, Yinsheng;Rollins, Andrew M.
我们报告了基于光谱仪的两光束光谱干涉测量中信号形成的分析模型。考虑到像素尺寸、光谱仪的光学分辨率和光谱分辨率以及色散，该模型表示基于衍射光栅和线性探测器阵列的光谱仪记录的信号。该模型是通用的，但通过简化的假设退化为更熟悉的形式。通过与实验测量的比较来验证该模型，结果表明该模型可以准确预测傅里叶域光学相干断层扫描成像的信号衰减和轴向分辨率。该模型可用于确定光谱干涉测量光谱仪的设计规范和预期性能参数。 (c) 2007 年美国光学学会。
We report an analytical model of signal formation in spectrometer-based two-beam spectral interferometry. Considering the pixel size, the optical resolution and the spectral resolution of the spectrometer, and dispersion, the model represents the signal recorded by a spectrometer based on a diffraction grating and linear detector array. The model is general, but degenerates to more familiar forms with simplifying assumptions. The model is validated by comparison with experimental measurements, where it is shown that the model can accurately predict both signal fall-off and axial resolution for Fourier-domain optical coherence tomography imaging. The model may be useful for determining design specifications and expected performance parameters for spectrometers for spectral interferometry. (c) 2007 Optical Society of America.