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Updated: Feb 6, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Effect of size and chemical composition of graphene oxide nanoparticles on optical absorption cross-section
Mohadeseh Hashemi1,2,3, Bharadwaj Muralidharan1,4, Meisam Omidi5
1University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas, United States.
Abstract:
Photothermal therapy with various nanoparticles, as photothermal transducers, is a widely researched technique. A continuous wave (CW) laser is employed during this procedure. The therapeutic setup is slightly modified to measure the optical absorption cross-section of the graphene oxide (GO), by mitigating the effects of heat diffusion and light scattering. With an 808-nm CW laser setup modulated by a waveform modulation setup, the effect of nanoparticle size and composition of GO in water on optical absorption cross section is characterized.
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