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Nonlinear Optical Surface Plasmon Resonance in Amorphous Arsenic Sulfide Films
Author(s) -
Popescu Aurelian A.,
Stafe Mihai,
Savastru Dan,
Baschir Laurentiu,
Puscas Niculae
Publication year - 2020
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201900065
Subject(s) - surface plasmon resonance , materials science , surface plasmon , amorphous solid , resonance (particle physics) , optoelectronics , hysteresis , thin film , optics , layer (electronics) , nonlinear system , transmission (telecommunications) , laser , plasmon , condensed matter physics , nanotechnology , nanoparticle , chemistry , physics , crystallography , atomic physics , quantum mechanics , engineering , electrical engineering
Four‐layer surface plasmon resonance configuration that includes a thin film from As 2 S 3 is studied. By numerical calculations and experiment, it is established that the shape of the resonance curve is very sharp. The changes in the optical transmission are investigated and it is found that when querying the structure with 514 nm CW laser light, nonlinear changes of the optical transmission with hysteresis loop occur. Large nonlinear change of reflectivity is observed near 10–12 mW power. Such behavior can be applied for the elaboration of optoelectronic devices.