Excited atoms-wall collisions and their manifestations in the fluorescence excitation line shapes

Abstract

Since the invention of the extremely thin cell which sustains prolonged action of hot and dense alkali vapours, a number of spectroscopic problems have been solved with its aid. As the width of the cell is comparable to, or smaller than, the wavelength of the actual atomic transition, The Doppler width of the fluorescence light is reduced due to the cage effect. Stimulated by recent measurements of the fluorescent excitation line shapes in the extremely thin cell we studied the dependence of these line shapes on the cell thickness.