(Color) Beam 30 propagates through the target at TCC; light transmitted within twice the original cone is collected by a large focusing mirror suspended from TCC. The light is directed out of the chamber onto a diagnostic platform.
(Color online) The near field of the transmitted light is imaged onto a spectralon surface with 13 fiber optic ports used to sample the power and spectrum. The -diam beam cone is shown as a dashed circle.
(Color) (a) The interaction beam (B30) propagates through the system without a target to calibrate the system. (b) At an intensity of the light is well contained within the original beam cone (dashed circle). (c) Light outside of the beam cone is observed for intensities above . (d) At the maximum intensity , the laser beam has exploded and light is measured well past the beam cone. (e) The measured fraction of energy inside of the original beam cone (squares) decreases as the intensity increases above the filamentation threshold. The peak FFOM is calculated (line) using the parameters from hydrodynamic simulations.
(Color) The transmitted power is measured at three radii across the near field of the transmitted beam (blue curves). Each curve is summed to give the total transmitted power (green curve). The incident laser power is measured with the same system (black curve).
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