Nd:YLF Laser Michiel de Jong 9-4-2009.

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Nd:YLF Laser Michiel de Jong 9-4-2009

Contents Nd:YAG and Nd:YLF lasers Build-up of the YLF laser Energy level scheme Research using the YLF laser

Nd:YAG laser Neodymium ion doped in Y3Al5O12 crystal Pumping with GaAs laser diode High gain and energy output by using Q-switching Crystal homogeneously broadens the laser transition

Q-switching Gain medium is pumped until in reaches Isat without presence of cavity Cavity is “switched-on”, thereby greatly increasing the quality factor

Nd:YLF Laser LiYF4 crystal Principle identical to Nd:YAG laser Twice the τu and thus Q-switching even more effective Crystal has low thermal birefringence

Energy level Scheme Pumping from 4I9/2 to 4F5/2 Relaxation to 4F3/2 Transition to 4I13/2 and 4I11/2 Relaxation to ground level

Applications Materials processing Medical applications

Applications Laser targeting Pumping other lasers

Publications Elsevier, 2008 Thermal stress effects of the diode-end-pumped Nd:YLF slab Zhe Ma, Jiancun Gao, Daijun Li, Junlin Li, Nianle Wu and Keming Du Department of Physics, Tsinghua University, Beijing 100084, China EdgeWave GmbH, Schumanstrasse 18B, Würselen 52146, Germany

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