Ultrafast dynamics process of platinum nanoparticles under femtosecond laser
Source abstract
Abstract
The energy relaxation dynamics process of Pt nanoparticles with a diameter of 25 nm after a 400-nm femtosecond laser excitation was investigated using pump-probe technology with 130 fs laser pulse. Experimental results show that the process includes a fast decay with time constant of 850 fs and a slow decay with time constant of 9 ps. Theoretical discussion indicates that the former results from electron-phonon coupling process, while the latter is from phonon-phonon coupling process.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Laser-Ablation Synthesis of Nanoparticles · Nonlinear Optical Materials Studies · Gold and Silver Nanoparticles Synthesis and Applications
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References (22)
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