Hydrogen Laser i n Vacuum Ultraviolet at Atmospheric-Pressure
Antonov V.S. , Knyazev I.N., Letokhov V.S., Movshev V.G.
The first observation of superradiance in the vacuum ultraviolet on transitions of molecular hydrogen and deuterium at atmospheric pressure is reported. When the pressure is increased, intensity anomalies are observed in the superradiance spectrum for transitions terminating on vibrational levels near the dissociation limit of the H2 molecule. Ten new laser transitions were observed.