A study was conducted on the leading-order contribution to the incoherent second harmonic generation of silver nanoparticles. By measuring the excitation wavelength dependence of βsilver, distinguishable dipole and quadrupole plasmon contributions to hyper-Rayleigh intensities were experimentally demonstrated. These two contributions have different angular distributions, and it was shown that DSEH theory in conjunction with simple angular distribution measurements may be used to determine the relative sizes of the dipole and quadrupole contributions.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry