Experimental Study using Optoacoustic Spectroscopy (OAS) on Spherical Gold Nanoparticles Articles uri icon

publication date

  • February 2011

start page

  • 143

end page

  • 146

issue

  • 1

volume

  • 43

International Standard Serial Number (ISSN)

  • 0030-3992

Electronic International Standard Serial Number (EISSN)

  • 1879-2545

abstract

  • In this paper a spectroscopic characterisation method based on the optoacoustic technique has been used to investigate the optical properties of two separate spherical gold nanoparticle (SGNP) solutions
    where an absorption peak located at 520 nm has been observed. This
    analysis has been carried out over the visible wavelength range from 410
    to 650 nm using a Q-switched Nd:YAG pumped optical parametric
    oscillator (OPO). To verify the reliability of optoacoustic spectroscopy
    (OAS), the results obtained have been compared to those from more
    standard and limited spectrophotometer and reference collimated optical
    transmission schemes, where good agreement is shown. The experimental
    procedure presented here demonstrates the potential of this technique
    for integration along with optoacoustic imaging methods to identify
    physiological information for non-destructive in-vivo applications.