Investigations of passive Q-switching in YAG:Nd lasers with Q-switches based on dye-doped polyurethane matrices

1Bezrodnyi, VI, 1Negriyko, AM, 2Kosyanchuk, LF
1Institute of the Physics of the NAS of Ukraine, Kyiv
2Institute of Macromolecular Chemistry of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2016, 9:61-68
https://doi.org/10.15407/dopovidi2016.09.061
Section: Physics
Language: Russian
Abstract: 

Effects of the polyurethane matrix polarity on spectral, nonlinear-optic, and switching properties of thiopyrilo-4-triocarbocyanine phototropic dye are studied. The experimental results of the passive Q-switching for a neodymium laser by Q-switches based on aliphatic polyurethane of high dielectric permittivity are presented. The positive influence of the polymer matrix polarity on a high-efficient generation of powerful single pulses is shown.

Keywords: absorption, laser, passive Q-switching, polarity, polyurethane
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