title: Low-threshold lasing of a Rhodamine dye solution embedded with nanoparticle fractal aggregates.
abstract: The spectral and temporal emission properties of a Rhodamine (Rh) dye solution embedded with nanoparticle fractal aggregates are studied. An experiment on the pump-power density dependence of Rh emission spectra shows that the lasing threshold of a Rh6G solution embedded with TiO(2) nanoparticle fractal aggregates is significantly reduced compared with that of a neat dye solution. The mechanism of this reduction in lasing threshold is discussed, together with the lasing properties of narrow bandwidth and short duration.
authors: H Z
authors: HZ
authors: Wang
authors: F L
authors: FL
authors: Zhao
authors: Y J
authors: YJ
authors: He
authors: X G
authors: XG
authors: Zheng
authors: X G
authors: XG
authors: Huang
authors: M M
authors: MM
authors: Wu