SVANDA, J., et al. Smart Modulators Based on Electric Field-Triggering of Surface Plasmon-Polariton for Active Plasmonics. Nanomaterials. 2022, 12(19), ISSN 2079-4991. DOI 10.3390/nano12193366.
Design and properties of a plasmonic modulator in situ tunable by electric field are presented. Our design comprises the creation of periodic surface pattern on the surface of an elastic polymer supported by a piezo-substrate by excimer laser irradiation and subsequent selective coverage by silver by tilted angle vacuum evaporation. The structure creation was confirmed by AFM and FIB-SEM techniques. An external electric field is used for fine control of the polymer pattern amplitude, which tends to decrease with increasing voltage. As a result, surface plasmon-polariton excitation is quenched, leading to the less pronounced structure of plasmon response. This quenching was checked using UV-Vis spectroscopy and SERS measurements, and confirmed by numerical simulation. All methods prove the proposed functionality of the structures enabling the creation smart plasmonic materials for a very broad range of advanced optical applications.
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI AG
dc.relation.ispartof
Nanomaterials
dc.subject
NANOPARTICLES
eng
dc.subject
NANOSTRUCTURES
eng
dc.subject
RESONANCE
eng
dc.subject
DEVICES
eng
dc.title
Smart Modulators Based on Electric Field-Triggering of Surface Plasmon-Polariton for Active Plasmonics