Liu Changling, Hu Xijing, Yuan Yonghua, et al. WHOLE-BEAM THERMAL BLOOMING EXPERIMENTS WITH A LONG LASER PULSE[J]. High Power Laser and Particle Beams, 1993, 05: 394-404.
Citation:
Liu Changling, Hu Xijing, Yuan Yonghua, et al. WHOLE-BEAM THERMAL BLOOMING EXPERIMENTS WITH A LONG LASER PULSE[J]. High Power Laser and Particle Beams, 1993, 05: 394-404.
Liu Changling, Hu Xijing, Yuan Yonghua, et al. WHOLE-BEAM THERMAL BLOOMING EXPERIMENTS WITH A LONG LASER PULSE[J]. High Power Laser and Particle Beams, 1993, 05: 394-404.
Citation:
Liu Changling, Hu Xijing, Yuan Yonghua, et al. WHOLE-BEAM THERMAL BLOOMING EXPERIMENTS WITH A LONG LASER PULSE[J]. High Power Laser and Particle Beams, 1993, 05: 394-404.
Whole-beam thermal blooming experiments have been done using a focused long pulse laser (τP= 1.8ms, E = 2001, angle spread θ = 2mrad). A blooming cell is full of ammonia at 0 -6 atmosphere pressure. A CCD system is used to measure the diameter of the distorted laser beam waist and the intensity profile of the spot at waist. The absorption cofficients are measured by a digital calorimeter. The instantaneous irradiation intensity at spot centre is measured by a photodiode digital collector-Roland mapper-Computer system. The instantaneous intensity profile is measured by a high speed camera.
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