کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5496492 1399852 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of Ag, Al2O3 and TiO2 nanoparticles effects as impurities in Laser Induced Breakdown in distilled water
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Investigation of Ag, Al2O3 and TiO2 nanoparticles effects as impurities in Laser Induced Breakdown in distilled water
چکیده انگلیسی
In this paper, laser induced optical breakdown in colloidal nanoparticles was studied by using pump- probe beam technique. Colloidal nanoparticles of Ag (as a good conductor), Al2O3 and TiO2 (with good dielectric properties) were used in this investigation. The optical breakdown was induced by an Nd:YAG laser beam (operating at 1064 nm with pulse duration ∼30 ns). A small portion of the beam was taken by an optical splitter and used as probe beam. The time varying transmission of the probe beam transversely through the plasma was measured during the breakdown process. According to the results, the nanoparticles characteristics and pump beam intensity have significant influence in the breakdown process. Our results also show dissimilar dynamic behaviors for conductor and dielectric nanoparticles at different pump intensity. The results are useful for nanoparticle synthesis by laser ablation in distilled water in which the optical breakdown intensity threshold of ambient water influenced by generated nanoparticles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 381, Issue 30, 13 August 2017, Pages 2397-2403
نویسندگان
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