Abegão, Luis M.G.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.2018-12-112018-12-112017-06-01Laser Physics Letters, v. 14, n. 6, 2017.1612-202X1612-2011http://hdl.handle.net/11449/169771A 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.engincoherent feedbackorganic-inorganic hybrid materialrandom lasersilica nanoparticlesArtigo10.1088/1612-202X/aa699bAcesso aberto2-s2.0-850198730252-s2.0-85019873025.pdf