Title :
Transmission of water under erbium laser irradiation
Author :
Breguet, J. ; Lüthy, W.
Author_Institution :
Inst. of Appl. Phys., Bern Univ., Switzerland
fDate :
2/1/1990 12:00:00 AM
Abstract :
Water can be used as a passive shutter for Q-switched erbium lasers. The switching mechanism induced in water under irradiation by 2.79- and 2.94-μm erbium laser light has been studied. It can be explained with a model based on evaporation. Time constants have been measured with a CW HeNe laser at 3.391 μm. The velocity of the vaporization front is about 10 m/s. This value leads to rise and fall times on the order of 10 μs in the given geometry
Keywords :
Q-switching; erbium; evaporation; laser accessories; laser beam effects; solid lasers; water; 10 m/s; 10 mus; 2.79 micron; 2.94 micron; 3.391 micron; CW HeNe laser; Er; Er laser irradiation; H2O; He-Ne; Q-switched erbium lasers; evaporation; fall times; laser accessories; passive laser shutters; rise times; switching mechanism; time constant measurement; vaporisation front velocity; vaporization front; water switching media; Capacitors; Erbium; Filters; Geometrical optics; Germanium; Laser beams; Laser modes; Lenses; Mirrors; Photodiodes; Switches; Time measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
