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study of the optical properties for BDN-I dye solutions which are used to Q-switch the Nd:YAG laser | ||
| journal of kerbala university | ||
| Article 1, Volume 3, Issue 3, 2007, Pages 33-54 PDF (0 K) | ||
| Authors | ||
| Sahib Nimma Abdul-Wahid; Methaq Mutter Mehdy Al-Sultany | ||
| Abstract | ||
| The Nd:YAG laser system has been mounted and the BDN-I dye was prepared and dissolved in different pure organic solvents such as ( carbon-tetra-chloride , chloroform, Acetone, Dioxane , and pyridine ) and in a mixture of carbon–tetra- chloride with another polar organic solvent at 1:1 and 2:1 mixing ratios. The dye solution was situated in a dye cell ,and modulated inside the laser resonator . The giant laser pulse power , and the dye solution transmittance (T) have been measured. The (T) values are utilized in calculation of the optical properties such as (Reflectance (R ), Absorptance (A) and refractance ( r) ), some indices as optical density (d) , refractive index (n), relative refractive index (nr).The effect of the variation Of the BDN-I molar concentration dye solution and mixing ratios have been studied on the optical properties firstly , the effect of the optical properties on each other secondly ,and finally , the effects of the BDN-I dye solutions optical properties on the giant laser pulse characteristics. It can be concluded that the relative refractive index (nr ) has an important role in controlling the passive Q-switching process by specifying the optical properties of the BDN-I solution. The main conclusion that the mixing method of carbon-tetra-chloride with other organic solvent at different mixing ratios is the best way to improve the giant laser pulse characteristics, where it decreases the optical properties which causes the losses of stimulated photons energy, and increases of that which causes consolidations the saturation absorption process. | ||
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