Frequency response of a thermally driven atmosphere.


A focus dithered CO(2) beam has been used to thermally dither the atmosphere in a laboratory thermal blooming cell. The amplitude and phase response of the dithered atmosphere were measured using both an He-Ne laser and a CO(2) laser. If a relaxation time determined by the beam diameter and the crosswind velocity is introduced, the atmospheric response can… (More)
DOI: 10.1364/AO.21.000421


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