物理学报Issue(13)：1-6,6.DOI:10.7498/aps.62.135201
深亚波长约束的表面等离子体纳米激光器研究*
Study of plasmonic nanolaser based on the deep subwavelength scale∗
摘要
Abstract
We have proposed a novel surface plasmonic nanolaser based on a nanowire/air gap/metal thin film hybrid structure to carry out theoretical research and simulation analysis. Opening an air groove in the MgF2 insulating layer, then making a nanowire embedded on the top of the air slot but maintaining a gap between the nanowire and the metal layer, thereby we produce a coupled hybrid plasmonic waveguide and a significant field enhancement effect. This structure enables the realization of an air gap. By simulating the modal properties and the lasing threshold of the hybrid plasmonic mode under different geometric parameters, the capacity of subwavelength scale with low propagation loss and high field confinement is demonstrated. Finally we achieve the nanolaser’s optimal structure size. Compared with the general diffraction limit laser, this structure can reduce the physical size of the device and the physical mode. The proposed nanolaser could be easily integrated with various nanophotonic devices, and it may become an appealing candidate for future active plasmonic systems.关键词
表面等离子体/混合等离子体波导/纳米激光器Key words
surface plasmon/hybrid plasmonic waveguides/nanolaser引用本文复制引用
..深亚波长约束的表面等离子体纳米激光器研究*[J].物理学报,2013,(13):1-6,6.基金项目
国家重点基础研究发展计划(973计划)(批准号:2011CB301805)、国家国际科技合作专项项目(批准号：OS20122R0151)和国家高技术研究发展计划(863计划)(批准号:2011AA7022016,2011AA8095044)资助的课题.* Project supported by the National Basic Research Program of China (Grant No.2011CB301805), the International Cooperation Projects (Grant No. OS2012R0151), and the National High Technology Research and Development Program of China (Grant Nos.2011AA7022016,2011AA8095044) （973计划）
