Enhancement of random lasing based on the composite consisting of nanospheres embedded in nanorods template.

Chen, Y L; Chen, C L; Lin, H Y; Chen, C W; Chen, Y F; Hung, Y; Mou, C Y

Chen, Y L; Chen, C L; Lin, H Y; Chen, C W; Chen, Y F; Hung, Y; Mou, C Y.

Afiliación

Chen YL; Department of Physics, National Taiwan University, Taipei 106, Taiwan. yfchen@phys.ntu.edu.tw

Opt Express ; 17(15): 12706-13, 2009 Jul 20.

Article en En | MEDLINE | ID: mdl-19654676

RESUMEN

A simple and general approach has been developed for the enhancement of random lasing based on the composite consisting of nanospheres and nanorods array. Due to the inherent nature of high refractive index, the selected nanorods act efficiently as scattering feedback centers, which can promote the formation of closed loop paths of the emission arising from nanospheres. To illustrate our working principle, the composite consisting of Tb(OH)(3)/SiO(2) nanospheres and ZnO nanorods was chosen as an example. Quite interestingly, it is found that the random lasing behavior can be easily achieved for the composite system, while it is absent in pure Tb(OH)(3)/SiO(2) nanospheres. The strategy demonstrated here should be very useful for the future development of coherent light emission sources and many other optoelectronic devices.

Asunto(s)

Nanosferas/química; Nanotecnología/métodos; Nanotubos/química; Óptica y Fotónica; Óxido de Zinc/química; Electrónica; Diseño de Equipo; Rayos Láser; Luz; Microscopía Electrónica de Transmisión; Modelos Teóricos; Dispersión de Radiación

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxido de Zinc / Nanotecnología / Nanotubos / Nanosferas / Óptica y Fotónica Tipo de estudio: Clinical_trials Idioma: En Revista: Opt Express Asunto de la revista: OFTALMOLOGIA Año: 2009 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Estados Unidos

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