Dissociation of H_2 Molecule by Picosecond Laser Irradiation at 532 nm in the 1-4×10^<13> W・cm^<-2> Range
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Dissociation probability of H_2 molecule by laser irradiation was measured in the 1-4×10^<13> W・cm^<-2> range using second harmonic of a picosecond Nd:YAG laser. The dissociation probability [H^+/(H^++H^+_2)] increased with the light intensity and reached 〜80% at 2×10^<13> W・cm^<-2>. The present result can be used as a correction factor in the measurement of gas pressure in ultrahigh vacuum by the atom counting method using the laser ionization technique.
- 社団法人応用物理学会の論文
- 1995-09-01
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