Abstract
Linear and nonlinear optical properties were studied for Cu nanoparticle composites with high Cu concentrations. Negative Cu ions of 60 keV were implanted into amorphous SiO 2 at a fixed flux of 10 μA/cm 2 to fluences ranging from 3 × 10 16 to 6 × 10 17 ions/cm 2. Implanted Cu contents were evaluated by Rutherford backscattering spectrometry with 2 MeV He + ions. Optical absorption increased with the Cu concentration but the surface plasmon peak was maximized around a fraction of 0.10 and attenuated beyond that fraction. Nonlinear optical properties were evaluated by the z-scan method and pump-probe method with a femtosecond laser system. The nonlinear absorption constant increased with the volume fraction but deviated from linearity beyond a Cu volume fraction of 0.20. The laser-induced transient response was ∼1 ps and was independent of the Cu concentration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
