A flashlamp-pumped dye laser has been developed to measure minor constituents of the upper atmosphere by resonance scattering. The construction of the laser and the procedures for tuning are described in detail. The spectrum has been narrowed to 5 pm, tuned to one of the sodium D lines, and measurements of atmospheric sodium have been made. The possibility of measuring other atmospheric constituents by the same method is briefly considered.
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A.J. Gibson (1969) studied this question.
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