One axis guided random laser emission from a glass capillary composite.
ALVES, Caroline Cassia; RIBEIRO, Sidney José Lima; MENDONÇA, Cleber Renato; BONI, Leonardo de; CAIUT, José Mauricio Almeida.
ALVES, Caroline Cassia; RIBEIRO, Sidney José Lima; MENDONÇA, Cleber Renato; BONI, Leonardo de; CAIUT, José Mauricio Almeida.
 Abstract: Random lasers are structures in which light is both, multiply scattered and amplified. The present study uses Rhodamine B and organic-inorganic hybrid materials to investigate the random lasing properties of silica capillary systems. The composite was prepared by dispersing the dye into an aluminoxane-epoxy-siloxane hybrid together with Boehmite powder, which are subsequently used to fill fused silica capillaries. In this system, Rhodamine B and Boehmite particles act at the same time as a gain and scattering medium, respectively. Random laser emission was performed by using the second harmonic of a 100-ps Nd:YAG laser as pump source; a typical laser threshold behavior was observed for a pumping fluency of 6 µJ/mm2. The random laser emission spectrum also displays a tunable behavior. This resulted from a combination of the broad emission spectrum of the dye with the different Boehmite particle sizes allied with the advantage of the capillary geometry. | |
| Journal of Luminescence |
| v. 211, p. 426-430 - Ano: 2019 |
| Fator de Impacto: 2,732 |
| http://dx.doi.org/10.1016/j.jlumin.2019.04.012 |  @article={002938404,author = {ALVES, Caroline Cassia; RIBEIRO, Sidney José Lima; MENDONÇA, Cleber Renato; BONI, Leonardo de; CAIUT, José Mauricio Almeida.},title={One axis guided random laser emission from a glass capillary composite},journal={Journal of Luminescence},note={v. 211, p. 426-430},year={2019}} |
