From Bloch to random lasing in ZnO self-assembled nanostructures

被引：9
|
作者：
Garcia, Pedro David [1 ]
Lopez, Cefe [2 ]
机构：
[1] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark
[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 44期
关键词：
RANDOM LASER ACTION; PHOTONIC CRYSTALS; LIGHT; EMISSION; PHYSICS; ARRAYS; OPALS;
D O I：
10.1039/c3tc31464b
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we present measurements on UV lasing in ZnO ordered and disordered nanostructures. Bloch lasing is achieved in the ordered structures by exploiting very low group-velocity Bloch modes in ZnO photonic crystals. In the second case, random lasing is observed in ZnO photonic glasses. We study the lasing threshold in both cases and its dependence on the structural parameters. Finally, we present the transition from Bloch to random lasing by deliberately doping a ZnO inverse photonic crystal with a controlled amount of lattice vacancies effectively converting it into a translationally correlated photonic glass.
引用
收藏
页码：7357 / 7362
页数：6
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