کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1494453 | 992910 | 2014 | 5 صفحه PDF | دانلود رایگان |

We present results for the induction and monitoring of structural modification of a composite consisting of elongated silver nanoparticles films embedded in silica using ultrafast femtosecond laser irradiation and second harmonic generation imaging, respectively. Waveguide-like patterns are written and characterized under a laser scanning nonlinear microscope system by simply changing the laser fluence in the sample; switching in this way between two different physical processes occurring only within the composite film: second harmonic generation and laser induced nanoparticles removal. A study of the nanoparticles damage process as a function of the laser energy, polarization and scan velocity is also presented and discussed. The use of the non-irradiated zone between two written channels is proposed as a potential linear and nonlinear optical waveguide.
Journal: Optical Materials - Volume 36, Issue 3, January 2014, Pages 682–686