Journal
PHYSICAL REVIEW B
Volume 79, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.085425
Keywords
nanostructured materials; periodic structures; photoelectron spectra; platinum; refractive index; surface plasmon resonance
Funding
- U. S. Air Force Office of Scientific Research
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0828370] Funding Source: National Science Foundation
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In this paper, we find that the resonant angle of surface plasmons (SPs) excited on a unique type of nanostructure-covered laser-induced periodic surface structure (NC-LIPSS) on platinum can be significantly different from the calculated value based on regular periodic grooves. We believe that this SP resonant angle shift is caused by an increase in the real part of the effective refractive index at the air-metal interface. We also find that the excitation of SPs can significantly enhance photoelectron emission on NC-LIPSSs.
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