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- Title
Exploring Time‐Resolved Multiphysics of Active Plasmonic Systems with Experiment‐Based Gain Models.
- Authors
Azzam, Shaimaa I.; Fang, Jieran; Liu, Jingjing; Wang, Zhuoxian; Arnold, Nikita; Klar, Thomas A.; Prokopeva, Ludmila J.; Meng, Xiangeng; Shalaev, Vladimir M.; Kildishev, Alexander V.
- Abstract
A systematic approach to investigate lasing and net amplification in plasmonic structures with a finite‐difference time‐domain method coupled to the rate equations of four‐level and six‐level atomic systems is developed. The experiment‐fitted kinetic parameters are fed into the model to study the mechanism of the coupling of metamaterials and metasurfaces with the gain medium. With the help of such an accurate model, net amplification can be distinguished from time‐resolved lasing dynamics for the plasmonic systems coupled with gain. Lasing and net amplification in plasmonic nanostructures are investigated with a finite‐difference time‐domain method coupled to a multi‐level atomic system model defined by population kinetic equations. The experiment‐fitted kinetic parameters are fed into the model to study the details of light‐matter interactions. Such an accurate, realistic model allows distinguishing net amplification and time‐resolved dynamics of lasers for active plasmonic systems.
- Subjects
PLASMONICS; METAMATERIALS; ACTIVE medium; NANOPHOTONICS; LIGHT sources
- Publication
Laser & Photonics Reviews, 2019, Vol 13, Issue 1, pN.PAG
- ISSN
1863-8880
- Publication type
Article
- DOI
10.1002/lpor.201800071