Peculiar features of surface plasmon-polariton modulation instability in a metal film with varying thickness

Author(s):  
Dmitry A. Korobko ◽  
Igor O. Zolotovskii ◽  
Sergey G. Moiseev ◽  
Andrei A. Fotiadi
2016 ◽  
Vol 529 (3) ◽  
pp. 1600167 ◽  
Author(s):  
Sergey G. Moiseev ◽  
Dmitry A. Korobko ◽  
Igor O. Zolotovskii ◽  
Andrei A. Fotiadi

2021 ◽  
Author(s):  
Dmitry A Korobko ◽  
Igor O. Zolotovskii ◽  
Sergey Moiseev ◽  
Alexei S. Kadochkin ◽  
Vyacheslav Svetukhin

Abstract Propagation of high-intensity electromagnetic waves in a waveguide structure could initiate nonlinear effects resulting in drastic changes of their spatial and temporal characteristics. We study the modulation instability effect induced by propagation of surface plasmon polaritons in a silver thin-film waveguide. The nonlinear Schrodinger equation for propagating surface plasmon wave is obtained. It is shown numerically that the modulation instability effect can give rise to ultrafast spatial redistribution and longitudinal localization of surface plasmon-polariton wave energy in subwavelength scale. The dependence of plasmon wave dispersion and nonlinear characteristics on metal film thickness is considered. We demonstrate that the use of films with the thickness varying along the waveguide length allows reduction of the generated pulse width and increase of frequency comb bandwidth. The proposed technique is promising for design of ultra-compact (tens of nm) optical generators delivering pulse trains with the repetition rate higher than 1THz.


Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2989
Author(s):  
Stefano Bellucci ◽  
Volodymyr Fitio ◽  
Andriy Bendziak ◽  
Iryna Yaremchuk ◽  
Yaroslav Bobitski

The resonant excitation of the surface plasmon–polariton waves by the prism structure, where a thin silver film was coated on the prism, was studied. New analytical relations between the angular and spectral sensitivities on the change of the medium refractive index, adjacent to the metal film, were obtained. In addition, the analytical relation between the full width at the half maximum of the spectral and angular resonance dependencies were found.


2016 ◽  
Vol 4 (42) ◽  
pp. 10111-10119 ◽  
Author(s):  
Ankur K. Dalsania ◽  
Jesse Kohl ◽  
Cindy E. Kumah ◽  
Zeqing Shen ◽  
Christopher E. Petoukhoff ◽  
...  

This work presents an experimental investigation of enhancing surface plasmon polariton coupling to semiconductor emission by tailoring metal film thickness.


2019 ◽  
Vol 7 (12) ◽  
pp. 7015-7024 ◽  
Author(s):  
Wonmi Ahn ◽  
Igor Vurgaftman ◽  
Jeremy J. Pietron ◽  
Pehr E. Pehrsson ◽  
Blake S. Simpkins

Hot carrier generation by surface plasmon polariton was demonstrated in a metal/semiconductor heterofilm and a bare metal film for energy-tunable photocatalysis.


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