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Theoretical Analysis Of Auto-Stability In Laser Resonator With Thermal Lenses Effect, Juan José Soto-Bernal, Adrian Bonilla-Petriciolet
Theoretical Analysis Of Auto-Stability In Laser Resonator With Thermal Lenses Effect, Juan José Soto-Bernal, Adrian Bonilla-Petriciolet
Adrian Bonilla-Petriciolet
In this work a numeric analysis is carried out to calculate the thermal lens effect in the stability of a barside-pumpedresonator at 808 nm. The active medium is a Nd:YVO4 crystal. It is demonstrated that the thermal effects produced by the radiative process, in certain conditions can take one of the planes to a non consistency, having as a consequence an oscillator that will work in intermittent form.
Characterization Of Cement And Concrete Exposed To Laser Radiation At 10.6 Um, María Del Rosario Moreno-Virgen, Juan José Soto-Bernal, Claudio Frausto-Reyes, Adrian Bonilla-Petriciolet
Characterization Of Cement And Concrete Exposed To Laser Radiation At 10.6 Um, María Del Rosario Moreno-Virgen, Juan José Soto-Bernal, Claudio Frausto-Reyes, Adrian Bonilla-Petriciolet
Adrian Bonilla-Petriciolet
In this paper, we report preliminary results of molecular structural changes in cement and concrete caused by laser radiation at 10.6 um. One of those structural changes is the generation of glazes. At low laser powers, the glazes are small and lined up while at high powers, the glazes are bigger and randomly distributed. In the not exposed to laser radiation concrete, the Raman spectrum presents weak peaks at 200 cm-1, 550 cm-1, 700 cm-1, 750 cm-1 and 1 150 cm-1. However, these peaks are amplified by laser exposure and other peaks appear at 800 cm-1 and 1 050 cm-1. …