Ramsay J V
Appl Opt. 1969 Mar 1;8(3):569-74. doi: 10.1364/AO.8.000569.
The spectral and optical performances of Fabry-Perot interferometers having nonuniformities in spacing are discussed, and it is shown that the finesse F of an interferometer with a circular aperture and a parabolic nonuniformity in spacing and that of one with a rectangular aperture and a linear nonuniformity (lack of parallelism) are both given by F = pi {[ (1 - R)(2)/R] + 2pixi/lambda}(-(1/2)), where xi is the maximum nonuniformity across the aperture and R is the plate reflectance. It is also shown that the nonuniformities impair the spectral performance more than the optical, particularly with incident white light.
讨论了间距存在不均匀性的法布里 - 珀罗干涉仪的光谱和光学性能，结果表明，对于具有圆形孔径且间距呈抛物线型不均匀性的干涉仪以及具有矩形孔径且间距呈线性不均匀性（缺乏平行度）的干涉仪，其精细度F均由F = π{[(1 - R)²/R] + [2πξ/λ]²}^(-1/2)给出，其中ξ是孔径上的最大不均匀性，R是平板反射率。还表明，不均匀性对光谱性能的损害比对光学性能的损害更大，尤其是在入射白光的情况下。
