High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles

Ernesto Jimenez-Villar, Valdeci Mestre, Paulo C. De Oliveira, Wagner M. Faustino, Gilberto F. De Sá

2014

Abstract

Here we have studied a novel scattering medium for random laser. This medium is composed of TiO2@Silica nanoparticles suspended in an ethanol solution of rhodamine 6G. TiO2 nanoparticles with average diameter of 0.41 μm were coated with a silica shell of ~40 nm thickness. Random laser study comparing TiO2 and TiO2@Silica nanoparticles suspended in ethanol solution of rhodamine 6G was performed. The study showed a high efficiency, low threshold, narrower bandwidth and lower photodegradation for TiO2@Silica system. Optical and chemical stability has been combined by coating TiO2 nanoparticles with a silica shell of ~40nm thickness.

Paper Citation

in Harvard Style

Jimenez-Villar E., Mestre V., C. De Oliveira P., M. Faustino W. and F. De Sá G. (2014). High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles . In Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-008-6, pages 26-32. DOI: 10.5220/0004711700260032

in Bibtex Style

@conference{photoptics14,
author={Ernesto Jimenez-Villar and Valdeci Mestre and Paulo C. De Oliveira and Wagner M. Faustino and Gilberto F. De Sá},
title={High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles},
booktitle={Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2014},
pages={26-32},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004711700260032},
isbn={978-989-758-008-6},
}

in EndNote Style

TY - CONF
JO - Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles
SN - 978-989-758-008-6
AU - Jimenez-Villar E.
AU - Mestre V.
AU - C. De Oliveira P.
AU - M. Faustino W.
AU - F. De Sá G.
PY - 2014
SP - 26
EP - 32
DO - 10.5220/0004711700260032