Theoretical performance limits of stationary Fourier spectrometers without mechanical scanning are analyzed and compared with the performance of a scanning Fourier spectrometer. Spectrometers employing uncollimated light are most favorable. In amplitude-splitting interferometers the reduction in fringe visibility brought about by the extended source can be avoided and leads to high optical throughput in the corresponding spectrometer. In a stationary wave-front-splittirig interferometer, realized without a beam splitter, the fringe contrast depends on the size of the source. The use of a slit source increases the optical throughput of source-size-limited spectrometers.
© 1991 Optical Society of America
Original Manuscript: September 26, 1990
Revised Manuscript: May 2, 1991
Manuscript Accepted: May 7, 1991
Published: September 1, 1991
M.-L. Junttila, J. Kauppinen, and E. Ikonen, "Performance limits of stationary Fourier spectrometers," J. Opt. Soc. Am. A 8, 1457-1462 (1991)