Transient Behaviors of Surface Plasmon Coupling with a Light Emitter
Resource
Applied Physics Letters 93: 153104
Journal
Applied Physics Letters
Journal Volume
93
Journal Issue
15
Date Issued
2008-10
Author(s)
Chuang, Wen-Hung
Wang, Jyh-Yang
Yang, C. C.
Kiang, Yean-Woei
Chuang, Wen-Hung
Wang, Jyh-Yang
Abstract
The transient behaviors of dipole couplings with surface plasmons (SPs) on a metal/dielectric grating interface, including surface plasmon polariton (SPP) and localized surface plasmon (LSP), are numerically demonstrated. Such a dipole-SP coupling process can lead to either enhanced dipole emission or effective pumping of a cavity-confining SP mode. Based on the time-resolved responses of a source pulse, it is found that the dipole-SP coupling features can be excited in several femtoseconds with the decay times ranging from 5 to 20 fs. From the significantly different decay times between the LSP and grating-assisted SPP features, one can classify those SP-coupling features into different application categories of efficient emission and SP energy storage.
SDGs
Type
journal article