Podoleanu Adrian Gh
Opt Express. 2007 Jul 23;15(15):9867-76. doi: 10.1364/oe.15.009867.
A theoretical model is developed to interpret the output of the diffraction grating spectrometer used to analyze the channelled spectrum produced by a low coherence interferometer set-up. This model leads to an unique interpretation which covers both cases (i) of Talbot bands and (ii) of a Michelson interferometer used in most spectral interferometry set-ups for sensing as well as for Fourier domain optical coherence tomography (FDOCT). Explanation of Talbot bands visibility as well as the decay of sensitivity with depth, characteristic for FDOCT, is explained by considering the extension of the two wavetrains diffracted by the diffraction grating in the spectrometer.
建立了一个理论模型，用于解释衍射光栅光谱仪的输出，该光谱仪用于分析由低相干干涉仪装置产生的沟道光谱。该模型给出了一种独特的解释，涵盖了两种情况：(i) 塔尔博特条纹情况，以及 (ii) 在大多数用于传感以及傅里叶域光学相干断层扫描 (FDOCT) 的光谱干涉测量装置中使用的迈克尔逊干涉仪情况。通过考虑光谱仪中衍射光栅衍射的两个波列的扩展，解释了塔尔博特条纹的可见度以及FDOCT特有的灵敏度随深度的衰减。
