Artículos de revistas
Distributed feedback multipeak laser emission in Rhodamine 6G doped organic-inorganic hybrids
Fecha
2006-12-01Registro en:
Journal of Sol-gel Science and Technology. Dordrecht: Springer, v. 40, n. 2-3, p. 359-363, 2006.
0928-0707
10.1007/s10971-006-8986-2
WOS:000240901100027
2998503841917815
6446047463034654
0000-0003-3286-9440
Autor
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Univ Angers
Institución
Resumen
Organic-inorganic hybrid materials were prepared from an ureasil precursor (ureapropyltriethoxysilane designated as UPTES) and acrylic acid modified zirconium (IV) n-propoxide. Thin films containing rhodamine 6G (Rh6G) were prepared by spin-coating on glass substrates with different Zr:Si molar ratios (Zr:Si = 75:25, 50:50 and 25:75). Refractive index, thickness, number of propagating modes and attenuation coefficient were measured at 543.5, 632.8 and 1550 nm wavelengths by the prism coupling technique. Distributed feedback (DFB) laser effect was observed and studied as a function of films thickness and refractive index.