Abstract
The dynamics of differential absorption spectra of gold nanoparticles has been studied by femtosecond laser spectroscopy over a wide range of excitation energy density. The position of the plasmon resonance peak strongly depends on the dielectric properties of the medium, thereby allowing the use of plasmonic nanoparticles as an optical probe. It has been shown that femtosecond laser spectroscopy techniques, involving analysis of differential absorption spectra of gold nanoparticles in aqueous colloid nanolayer, make it possible to characterize the state of a water nanolayer surrounding the nanoparticle. In particular, at a high excitation energy density, the plasmon resonance absorption band exhibits spectral—kinetic features that suggest vaporization in the nanolayer around the gold particle.
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 callDisclaimer: 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.
