Helbert J M, Laforie P, Miche P
Appl Opt. 1977 Aug 1;16(8):2119-26. doi: 10.1364/AO.16.002119.
The association of a Michelson interferometer and a Fabry-Perot etalon enables the control of the displacement of the peaks of Fabry-Perot transmittance by pressure scanning through Michelson fringes counting. Assuming the variations of the refractive index of gas as a function of wavenumber, pressure, and temperature are known, we show that it is perfectly possible to compute the number of fringes to shift in order to position a chosen peak of Fabry-Perot transmittance for any point in the spectrum. These possibilities enable us to build a real spectrometer whose accuracy is better than 0.05 cm(-1) in the whole visible range.
将迈克尔逊干涉仪与法布里-珀罗标准具相结合，通过对迈克尔逊条纹计数来进行压力扫描，从而实现对法布里-珀罗透过率峰值位移的控制。假设已知气体折射率随波数、压力和温度的变化关系，我们表明，对于光谱中的任何一点，完全有可能计算出为使法布里-珀罗透过率的选定峰值定位而需移动的条纹数。这些可能性使我们能够构建一台在整个可见光范围内精度优于0.05 cm⁻¹的实际光谱仪。
