Directional laserlike emission from a dye-doped polymer containing rutile nanoparticles

被引:13
作者
Alencar, MARC [1 ]
Gomes, ASL [1 ]
de Araújo, CB [1 ]
机构
[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil
关键词
D O I
10.1364/JOSAB.20.000564
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A novel scheme for generation of laserlike emission from highly scattering media is presented. A high degree of directionality is obtained owing to the excitation of surface plasmons in a silver film. The electromagnetic energy coupled to surface plasmons is transferred to a polymeric disk containing Rhodamine and TiO2 nanospheres placed in close contact with the film. The fluorescence produced in the disk, outcoupled through a prism, displays features of a "laser paint" plus a high directionality. (C) 2003 Optical Society of America.
引用
收藏
页码:564 / 567
页数:4
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