Plasmonic pulse shaping and velocity control via photoexcitation of electrons in a gold film.
We study the possibility of surface plasmon polariton (SPP) pulse shape, delay and duration manipulation on sub-picosecond timescales via a high intensity pump SPP pulse photoexciting electrons in a gold film. We present a theoretical model describing this process and show that the pump induces the phase modulation of the probe pulse leading to its compression by about 20% and the variation of the delay between two SPP pulses up to 15 fs for the incident fluence of the pump of 1.5 mJ∙cm⁻².
Nikola E
NE
Khokhlov
Daria O
DO
Ignatyeva
Vladimir I
VI
Belotelov
D004583:Electrons; D004867:Equipment Design; D006046:Gold / Q000737:chemistry*; D008962:Models, Theoretical; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
D006046:Gold