Automatic wide-range scanning and calibration over 220–740 nm using a dye laser with a rapid cell exchanger

Abstract
A pulsed dye laser system fully controlled by a microcomputer has been developed as a tunable light source for analytical spectroscopy. The system has 13 dyes with a rapid replacement mechanism and a frequency doubler inside, and any desired wavelength from 220 to 740 nm can be instantaneously generated by the aid of the microcomputer control. The absolute wavelength can be automatically calibrated with a newly developed optogalvanic wavemeter with an accuracy of ±1 cm−1 over the whole spectral range.