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

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.
Authors:
; ;  [1]
  1. Russian Academy of Sciences, Institute of Applied Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22469677
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 49; Journal Issue: 12; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COLLOIDS; CONCENTRATION RATIO; DIMERS; GOLD; LASER RADIATION; LUMINESCENCE; NANOPARTICLES; NONLINEAR PROBLEMS; PHOTONS; POLARIZATION; WAVELENGTHS