García-Revilla Sara, Fernández Joaquin, Illarramendi Maria A, García-Ramiro Begoña, Balda Rolindes, Cui Hongtao, Zayat Marcos, Levy David
Departamento Física Aplicada I, Escuela Técnica Superior de Ingeniería, Alda. Urquijo s/n 48013 Bilbao, Spain.
Opt Express. 2008 Aug 4;16(16):12251-63. doi: 10.1364/oe.16.012251.
We report efficient random lasing in a ground powder of a novel solid-state material based on silica gel containing SiO(2) nanoparticles embedding rhodamine 6G (Rh6G) dye. Basic properties of random lasing such as emission kinetics, emission spectrum, and threshold of stimulated emission are investigated by using real-time spectroscopy. The laser-like emission dynamics can be accurately described by a light diffusive propagation model. The device behavior is close to a conventional ultrafast Q-switched laser, which is an interesting fact aimed to further applications.
我们报道了在一种新型固态材料的研磨粉末中实现了高效随机激光发射，该材料基于含有嵌入罗丹明6G（Rh6G）染料的SiO₂纳米颗粒的硅胶。利用实时光谱研究了随机激光发射的基本特性，如发射动力学、发射光谱和受激发射阈值。激光样发射动力学可以用光扩散传播模型准确描述。该器件的行为接近传统的超快调Q激光器，这一有趣的事实有望用于进一步的应用。
