Random laser emission from a Rhodamine B-doped GPTS/TEOS-derived organic/silica monolithic xerogel

Author(s):Show less -

Abegao, Luis M. G. ; Manoel, D. S. ; Otuka, A. J. G. ; Ferreira, P. H. D. ; Vollet, D. R. ; Donatti, D. A. ; De Boni, L. ; Mendonca, C. R. ; De Vicente, F. S. ; Rodrigues, J. J., Jr. ; Alencar, M. A. R. C.

• Document type: Journal article
• Source: LASER PHYSICS LETTERS; v. 14, n. 6, p. 6-pg., 2017-06-01.

Abstract

A Rhodamine B-doped 3-glycidoxypropyltrimethoxysilane (GPTS)/tetraethyl orthosilicate (TEOS)-derived organic/silica monolithic xerogel with excellent optical properties was prepared and its potential as a random laser host investigated. This hybrid material has a non-porous organic/inorganic morphology with silica-rich nanoparticles of less than 10 nm in diameter homogeneously dispersed within the matrix. Random laser emission with incoherent feedback, centered at 618 nm, was observed from Rhodamine B incorporated into the monolithic xerogel when excited by a 532 nm pulsed laser. This hybrid system is shown to be very promising for the development of a new class of random laser-based integrated devices, with applications ranging from optical bio-imaging to sensing. (AU)

• FAPESP's process: 11/12399-0 - Femtosecond pulses applied to nonlinear optics: spectroscopy, pulse shaping and microfabrication
• Grantee: Cleber Renato Mendonça
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 11/23587-1 - Polymeric structures with carbon nanotubes: laser processing, characterization and applications
• Grantee: Adriano José Galvani Otuka
• Support Opportunities: Scholarships in Brazil - Doctorate