Answers are grounded in this paper and cite their sources.
An optical linewidth of 20 Hz of laser light scattered by spherical particles undergoing Brownian motion has been measured experimentally by photon-counting statistics using the theory of the intensity-fluctuation distribution of Gaussian-Lorentzian light.
No takes yet. Share an insight, caveat, or question.
Jakeman et al. (1968) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: