Simultaneous excitation of fast and slow surface plasmon polaritons in a high dielectric contrast system
Abbreviated Journal Title
Appl. Phys. Lett.
TUNNEL-JUNCTIONS; LIGHT-EMISSION; OPTICAL-CONSTANTS; MODE; Physics, Applied
Surface plasmon polaritons propagating in a high dielectric contrast system are investigated numerically. Using frequency domain simulations, we show that a three layer system consisting of air-silicon (7 nm)-silver supports two different modes at the Ag-Si interface: a fast mode, which exhibits normal dispersion, and a slow mode, which exhibits anomalous dispersion. Near the Ag-Si surface plasmon polariton resonance frequency, surface waves with a wavelength of 25 nm are observed at a vacuum wavelength of 595 nm, equivalent to lambda(f)/24. The results show the possibility of exciting surface waves with extreme ultraviolet wavelengths using visible frequencies.
Applied Physics Letters
"Simultaneous excitation of fast and slow surface plasmon polaritons in a high dielectric contrast system" (2008). Faculty Bibliography 2000s. 1131.