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

• Autor(a) principal: Abegão, Luis M.G.
• Data de Publicação: 2017
• Outros Autores: Manoel, D. S. [UNESP], Otuka, A. J.G., Ferreira, P. H.D., Vollet, D. R. [UNESP], Donatti, D. A. [UNESP], De Boni, L., Mendona, C. R., De Vicente, F. S. [UNESP], Rodrigues, J. J., Alencar, M. A.R.C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1088/1612-202X/aa699b; http://hdl.handle.net/11449/169771
• topic: incoherent feedback; organic-inorganic hybrid material; random laser; silica nanoparticles

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.