Functionalized and microstructured polymeric composites used as gain medium in random lasers systems

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Author(s):	Otuka, Adriano J. G. ; Sciuti, Lucas F. ; Ferreira, Paulo H. D. ; Martins, Renato J. ; Mendonca, Cleber R. ; de Boni, Leonardo ; IEEE Total Authors: 7
Document type:	Journal article
Source:	2019 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC); v. N/A, p. 4-pg., 2019-01-01.
Abstract
In this work, we developed optically active polymeric composite which are employed as gain medium in random laser systems. Single-walled carbon nanotubes were added to the polymeric matrix aiming increase the number of scattering centers inside the samples. We also evaluate the random laser behavior when artificial scattering centers are introduced inside the samples. For that purpose, using a laser micromachining technique, we fabricated periodic patterns in the composites volume. As result, we also observed a coherent feedback of the random lasers, but the multiple peaks were locked in specific wavelengths, interesting feature for different applications. (AU)

FAPESP's process:	16/20094-8 - Fabrication of biocompatible and biologically active platforms using laser processing techniques
Grantee:	Adriano José Galvani Otuka
Support Opportunities:	Scholarships in Brazil - Post-Doctoral


FAPESP's process:	18/11283-7 - Nonlinear photonics: spectroscopy and advanced processing of materials
Grantee:	Cleber Renato Mendonça
Support Opportunities:	Research Projects - Thematic Grants