物理学报2016，Vol.65Issue(8)：087301-1-087301-7,7.DOI:10.7498/aps.65.087301
一维原子链局域等离激元的非线性激发∗
Nonlinear excitation of lo calized plasmon in one-dimensional atomic chain
摘要
Abstract
At different frequencies of light pulse field, the coupling between plasmon resonance and electron transport of one-dimensional sodium atomic chain is investigated by using time-dependent density functional theory. Light pulse field, whose frequency is in about 0.8 eV range around the plasmon resonance point, can stimulate plasmon resonance of the system. Plasmon resonance intensity magnitude which is stimulated by these different frequency light pulse fields are in the same order of magnitude. The more closely the external field frequency approaches to plasmon resonance frequency, the larger plasmon resonance amplitude stimulated by the external field fields will be. With regard to the nonlinear excitation phenomenon of linear atomic chain plasmon, using a classical harmonic oscillator model, we gives a qualitative explanation.关键词
等离激元/一维原子链/含时密度泛函理论Key words
plasmon/one-dimensional atomic chains/time-dependent density functional theory引用本文复制引用
尹海峰,毛力..一维原子链局域等离激元的非线性激发∗[J].物理学报,2016,65(8):087301-1-087301-7,7.基金项目
国家自然科学基金(批准号:11464023)、贵州省普通高等学校创新人才团队(黔教合人才团队字[2012]06号)和凯里学院原子与分子物理重点学科资助的课题.* Project supported by the National Natural Science Foundation of China (Grant No.11464023), the Innovative Talent Team of Colleges of Guizhou Province, China (Grant No.[2012]06), and the Atomic and Molecular Physics Key Discipline of Kaili University, China （批准号:11464023）
