[Phys-seminars] 2017-10-26 Lasers Seminar

barmash barmash at bgu.ac.il
Sat Oct 21 19:18:17 IDT 2017


Lasers Seminar

 DATE: 26-10-17

 TIME: 15:30

 PLACE: Physics building (#54) room 207

TITLE: 
Passive Q-switching of a Tm:YLF laser using a Co2+ doped Hilver Halide saturable absorber

SPEAKER: 
Harel Hecht, Department of Physics, Ben-Gurion University

ABSTRACT/COMMENTS: 
We report a successful passive Q-switching of a Tm:YLF laser operating at λ=1.9 μm, using a Co2+:AgCl0.5Br0.5 saturable absorber. Approximately 200-ns long, 150 μJ pulses were obtained. Increase in pump energy resulted in repetitive pulsing, with a repetition rate approximately proportional to the pump pulse energy. Room-temperature optical transmission saturation curves measured in ~1-mm thick Co2+:AgCl0.5Br0.5 plates yielded a ground state absorption cross section, and an excited state absorption cross section , at λ=1.9 μm.


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