Open AccessSensitized nonlinear emission of gold nanoparticles
Author(s) -
M. A. Noginov,
Guohua Zhu,
В. И. Гавриленко
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.015648
Subject(s) - rhodamine 6g , colloidal gold , materials science , nanoparticle , absorption (acoustics) , rhodamine , photochemistry , stokes shift , optics , analytical chemistry (journal) , optoelectronics , nanotechnology , fluorescence , chemistry , physics , chromatography , luminescence , composite material
We have studied Stokes and anti-Stokes emission of Au nanoparticles suspended in pure methanol and methanol solution of rhodamine 6G dye. In the presence of dye, excitation of anti-Stokes emission of gold involves two-photon absorption in rhodamine 6G molecules followed by the energy transfer to Au nanoparticles with simultaneous absorption of one pumping photon by Au. The sensitization by dye molecules caused six-fold enhancement of the anti-Stokes emission of gold nanoparticles.