Few-Cycle Surface Plasmon Polariton Generation by Rotating Wavefront Pulses

Anno: 2018

Autori: Pisani F., Fedeli L., Macchi A.

Affiliazione autori: Univ Pisa, Enrico Fermi Dept Phys, I-56127 Pisa, Italy; Politecn Milan, Dept Energy, I-20133 Milan, Italy; Natl Res Council CNR INO, A Gozzini Unit, Natl Inst Opt, I-56124 Pisa, Italy.

Abstract: A concept for the efficient generation of surface plasmon polaritons (SPPs) with ultrashort duration close to the single-cycle limit is presented. The scheme is based on grating coupling and laser pulses with wavefront rotation (WFR), so that the resonance condition for SPP excitation is satisfied only for a time window shorter than the driving pulse. The feasibility and robustness of the technique is investigated by means of simulations with realistic parameters. In optimal conditions, we find that a 29.5 fs pulse with an 800 nm wavelength can excite SPPs with < 4 fs duration (similar to 1.5 laser cycles) and a peak field amplitude similar to 2.7 times the peak value for the laser pulse. Giornale/Rivista: ACS PHOTONICS

Volume: 5 (3)      Da Pagina: 1068  A: 1073

Parole chiavi: ultrashort pulses; femtosecond plasmonics; grating-coupler; few-cycle plasmonics; strong coupling
DOI: 10.1021/acsphotonics.7b01347

Citazioni: 7
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29
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