| A Fourier Transform Spectrometer (FTS) designed specifically for use in the ultraviolet and visible (UV-VIS) regions of the spectrum has been fabricated and characterized.;In air the usable spectral band-width of this interferometer is from approximately 200 nm through the visible region of the spectrum. With evacuation or purging, the present optical components should allow for operation to approximately 180 nm.;The moving mirror is attached to an air-bearing/permanent magnet assembly. Twin wire coils provide the force by which the mirror is translated. A zero-force servo system has been developed to maintain a constant mirror velocity. The velocity varies less than ;De-aliased spectra can be acquired using a frequency multiplied version of the reference laser fringe. The frequency multiplication is achieved via a digital Phase Locked Loop.;This spectrometer is based upon a standard 90;To reduce the effect of the multiplex disadvantage, A novel predispersion system has been coupled with the interferometer. This predisperser is based upon the optical system of the LECO PLASMARRAY echelle spectrometer. Preliminary proof-of-concept studies have been successful. |
