skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Соllective Fluorescence of Composite Nanoparticles

Abstract

Fluorescence of a suspension of spherical nanoparticles consisting of a gold core surrounded by silicon dioxide doped with fluorescein molecules is experimentally studied. The model of a composite nanoparticle is investigated theoretically and experimentally, taking into account polarization fluctuations. It is shown that a local nonlinear feedback in the system leads to characteristic temperature dependences of the fluorescence linewidth and intensity. As the medium was cooled from room temperature to liquid nitrogen temperature, the fluorescence spectrum narrowed and its intensity strongly increased. A comparison of experimental data with numerical calculations showed that the changes observed in experiments are not explained by the temperature dependence of the parameters of elements of a nanoparticle. The analysis of the dynamics of polarization phases of dye molecules showed that the synergetic effect should be taken into account, which forms the basis of plasmon–polariton superradiance.

Authors:
; ; ;  [1]
  1. Russian Academy of Sciences, Institute of Automatics and Electrometry, Siberian Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22750024
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 126; Journal Issue: 2; Other Information: Copyright (c) 2018 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; DOPED MATERIALS; FLUORESCENCE SPECTROSCOPY; LINE WIDTHS; NANOPARTICLES; NONLINEAR PROBLEMS; SILICON OXIDES; SPHERICAL CONFIGURATION; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K

Citation Formats

Zabolotskii, A. A., E-mail: zabolotskii@iae.nsk.su, Kuch’yanov, A. S., Benimetskii, F. A., and Plekhanov, A. I. Соllective Fluorescence of Composite Nanoparticles. United States: N. p., 2018. Web. doi:10.1134/S1063776118020097.
Zabolotskii, A. A., E-mail: zabolotskii@iae.nsk.su, Kuch’yanov, A. S., Benimetskii, F. A., & Plekhanov, A. I. Соllective Fluorescence of Composite Nanoparticles. United States. doi:10.1134/S1063776118020097.
Zabolotskii, A. A., E-mail: zabolotskii@iae.nsk.su, Kuch’yanov, A. S., Benimetskii, F. A., and Plekhanov, A. I. Thu . "Соllective Fluorescence of Composite Nanoparticles". United States. doi:10.1134/S1063776118020097.
@article{osti_22750024,
title = {Соllective Fluorescence of Composite Nanoparticles},
author = {Zabolotskii, A. A., E-mail: zabolotskii@iae.nsk.su and Kuch’yanov, A. S. and Benimetskii, F. A. and Plekhanov, A. I.},
abstractNote = {Fluorescence of a suspension of spherical nanoparticles consisting of a gold core surrounded by silicon dioxide doped with fluorescein molecules is experimentally studied. The model of a composite nanoparticle is investigated theoretically and experimentally, taking into account polarization fluctuations. It is shown that a local nonlinear feedback in the system leads to characteristic temperature dependences of the fluorescence linewidth and intensity. As the medium was cooled from room temperature to liquid nitrogen temperature, the fluorescence spectrum narrowed and its intensity strongly increased. A comparison of experimental data with numerical calculations showed that the changes observed in experiments are not explained by the temperature dependence of the parameters of elements of a nanoparticle. The analysis of the dynamics of polarization phases of dye molecules showed that the synergetic effect should be taken into account, which forms the basis of plasmon–polariton superradiance.},
doi = {10.1134/S1063776118020097},
journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 2,
volume = 126,
place = {United States},
year = {2018},
month = {2}
}