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Title: Polarization and spectral characteristics of the two-photon luminescence from colloidal gold nanoparticles excited by tunable laser radiation

Journal Article · · Semiconductors
;  [1]
  1. Russian Academy of Sciences, Institute of Applied Physics (Russian Federation)

We have experimentally studied two-photon luminescence from a colloidal solution of spherical gold nanoparticles by tuning the wavelength of the exciting radiation. The measured polarization and spectral characteristics of the two-photon luminescence signal show that the observed nonlinear optical response is determined by the dimers present in the solution with a concentration of a few percent of total nanoparticle number.

OSTI ID:
22469677
Journal Information:
Semiconductors, Vol. 49, Issue 12; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
Country of Publication:
United States
Language:
English