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New Optical Technique For An Imaging Photodiode Array Spectrophotometer

This paper describes the development and usage of a new photodiode array spectrophotometer. The new system incorporates a novel optical technique for sampling an extended wavelength region by the use of multiple entrance slits to divide a spectrum, from 200 to 900 nm, into two segregated sampling components. The new system provides improved wavelength definition over conventional spectrographic array systems. Also described is the development methodology and optical optimization techniques used in design of the system.