吉首大学学报（自然科学版）2023，Vol.44Issue(6)：50-58,9.DOI:10.13438/j.cnki.jdzk.2023.06.009
纳米银球附近三能级原子的自发辐射动力学特性
Spontaneous Radiation Dynamics of Three-Level Atoms Near Silver Nanospheres
李芸 1高广波 1单馨雨 1黄勇刚1
作者信息
- 1. 吉首大学物理与机电工程学院,湖南吉首 416000
- 折叠
摘要
Abstract
Based on the method of Green's function presolvation operator,the spontaneous radiation dy-namics of V-type three-level atoms near silver nanospheres are studied.The effects of atomic transition frequency and atomic distance on the surface of the nanosphere on the spontaneous radiation dynamics are investigated systematically.The results show that when the transition frequency of the atom is far a-way from the resonant frequency of the isoplasmon,the evolution spectrum of the atom is half high and narrow,the dynamic oscillation is enhanced,and the decay rate is slow with time.When the two transi-tion frequencies are close to the formant frequency,the kinetic oscillation of the atom is weakened,and the attenuation rate is faster with time.The distance between the atom and the surface of the nanosphere plays an important role in the coherent oscillation.The closer the distance,the stronger the coherent os-cillation;and the farther the distance,the weaker the coherent oscillation.关键词
表面等离激元/三能级原子/自发辐射动力学Key words
surface plasmon/three-level atom/spontaneous radiation dynamics分类
数理科学引用本文复制引用
李芸,高广波,单馨雨,黄勇刚..纳米银球附近三能级原子的自发辐射动力学特性[J].吉首大学学报（自然科学版）,2023,44(6):50-58,9.
