Laser-Driven Hybridization of a Surface Plasmon Resonance Collective Mode in a Monolayer of Silver Nanoparticles

Laser-driven hybridization of a collective surface plasmon mode of a monolayer of silver nanoparticles has been studied as a function of irradiation power density. Two collective surface plasmon modes were identified in the spectra, namely, T- and P-modes, associated with the induced particle dipole...

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Bibliographic Details
Published in:Plasmonics (Norwell, Mass.) Mass.), 2017-10, Vol.12 (5), p.1571-1580
Main Authors: Yeshchenko, Oleg A., Bondarchuk, Illya S., Malynych, SerhiyZ, Galabura, Yuriy, Chumanov, George, Luzinov, Igor, Pinchuk, Anatoliy O.
Format: Article
Language:English
Subjects:
Biochemistry
Biological and Medical Physics
Biophysics
Biotechnology
Chemistry
Chemistry and Materials Science
Irradiation
Laser beam heating
Lasers
Materials Science
Nanoparticles
Nanotechnology
Science & Technology - Other Topics
Silver
Spectra
Surface plasmon resonance
Temperature effects
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Summary:Laser-driven hybridization of a collective surface plasmon mode of a monolayer of silver nanoparticles has been studied as a function of irradiation power density. Two collective surface plasmon modes were identified in the spectra, namely, T- and P-modes, associated with the induced particle dipoles parallel and perpendicular to the plane of the layer. The P-mode was in resonance with the laser irradiation wavelength (488 nm). The magnitude, spectral position, and bandwidth of the two modes depend significantly differently on the laser power density. The laser-driven changes of the T-mode were attributed to the thermal effects caused by laser heating of the sample. Meanwhile, the spectral behavior of the P-mode is governed by resonant excitation by an Ar laser.
ISSN:1557-1955
1557-1963
DOI:10.1007/s11468-016-0420-1