Micromachining in glass using femtosecond lasers: waveguide fabrication and nanoparticles production.

• Grant number: 12/04794-9
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2012
• End date: July 31, 2014
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Cleber Renato Mendonça
• Grantee: Paulo Henrique Dias Ferreira
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 11/12399-0 - Femtosecond pulses applied to nonlinear optics: spectroscopy, pulse shaping and microfabrication, AP.TEM

Abstract

Nonlinear optical phenomena have received considerable attention because of its potential for generating new technologies. Among the application areas, one can mention three-dimensional waveguide production in glassy materials using femtosecond pulses. At the same time, there is a large interest in systems containing metal nanoparticles which can be explored in optoelectronic and photonic devices.Imbued with this idea, this project aims to implement the microfabrication process with femtosecond pulse in glasses doped with metal ions in order to further investigate the ions photoreduction and subsequent formation of nanoparticles. Thus, this project was divided into two steps. At first, we will investigate the nonlinear optical response (refraction and absorption) in special glass matrices (germinates, tellurides and phosphates), which must have high optical nonlinearities due to the presence of highly polarizable ions and by having high refractive index matrices. In the second step of this project, we intend to use femtosecond pulses to study microfabrication and micromachining processes of glass doped with metal ions (Au, Ag and Ni), and consequent production of metal nanoparticles. In this context, we will determine the microfabrication conditions, aiming at the production of waveguides. From these studies, we intend to produce waveguides within the volume of the glass in a first step for the production of integrated photonic devices. In this regard, the implementation and execution of this project should provide results that contribute to the development, from the basic and applied viewpoint, of new nonlinear optical devices, exploring new possibilities in material processing.

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ALMEIDA, JULIANA M. P.; FONSECA, RUBEN D.; DE BONI, LEONARDO; DINIZ, ANDRE ROSA S.; HERNANDES, ANTONIO C.; FERREIRA, PAULO H. D.; MENDONCA, CLEBER R.. Waveguides and nonlinear index of refraction of borate glass doped with transition metals. Optical Materials, v. 42, p. 522-525, APR 2015. (11/12399-0, 11/21434-3, 12/04794-9)

FERREIRA, P. H. D.; OTUKA, A. J. G.; BARBANO, E. C.; MANOEL, D. S.; DE VICENTE, F. S.; VOLLET, D. R.; DONATTI, D. A.; MISOGUTI, L.; MENDONCA, C. R.. Femtosecond laser fabrication of waveguides in Rhodamine B-doped GPTS/TEOS-derived organic/silica monolithic xerogel. Optical Materials, v. 47, p. 310-314, SEP 2015. (11/22787-7, 11/23587-1, 11/12399-0, 12/04794-9)

ESTEVAM-ALVES, R.; FERREIRA, P. H. D.; ALMEIDA, G. F. B.; SOUSA, W. S.; MENDONCA, C. R.. Microfabrication of electroluminescent polymer for devices construction. Applied Surface Science, v. 314, p. 633-637, SEP 30 2014. (11/12399-0, 12/04794-9)

FERREIRA, P. H. D.; STEFANUTTI, R.; PAVINATTO, F. J.; MENDONCA, C. R.. Femtosecond laser fabrication of waveguides in DR13-doped PMMA. Optics Communications, v. 318, p. 53-56, MAY 1 2014. (11/12399-0, 12/04794-9)