Full text loading...
Schematic illustration of light kick by prealigned molecules. The probe filament is, respectively, tuned to match the (a) parallel revival, (b) perpendicular revival, and (c) random orientation of the prealigned molecules excited by an advancing pump filament. The relative refractive index variation induced by the prealigned neutral molecules, plasma, and the sum of them (total) are plotted vs the displacement from the pump filament.
(a) The measured fluorescence wake of the pump and probe filaments in atmosphere. The (b) measured and (c) simulated molecular alignment revivals of the diatomic molecules in atmosphere. The inset of (b) shows the delayed rotational Raman response of the atmosphere with respect to the pump pulse envelope.
Measured displacement and fluorescence intensity of the probe filament vs rotational Raman wake of atmosphere. The pump-probe filaments separation and fluorescence intensity of the probe filament as it is tuned to match the (a) and (b) half-revivals and (c) and (d) full- and three-quarter revivals of the prealigned molecular nitrogen and oxygen molecules in atmosphere. (e) The corresponding fluorescence intensity profiles of the pump and probe filaments.
Measured displacement and fluorescence intensity of the probe filament nearby the zero time delay. (a) and (b) The pump-probe filaments separation vs their time delay nearby the zero delay for various initial separations. (c) The corresponding fluorescence intensity profiles of the pump and probe filaments.
Article metrics loading...