Photothermal behavior for two-dimensional nanoparticle ensembles: Multiple scattering and thermal accumulation effects
نویسندگان
چکیده
Light-assisted micro-nanoscale temperature control in complex nanoparticle network attracts lots of research interests. Many efforts have been put on the optical properties networks and only a few investigations its light-induced thermal behavior was reported. We consider two-dimensional (2D) square-lattice ensemble made typical metal Ag with radius 5 nm. The effect coupling accumulation plasmonic resonance frequency (around 383 nm) is analyzed by means Green\textquotesingle s function approach. Regime borders both effects photothermal 2D are figured out clearly quantitatively. A dimensionless parameter $\varphi$ defined as ratio full increase to that without considering or quantify behavior. more compact is, stronger is. When lattice spacing increases tens radius, becomes insignificant. $\varphi \approx 1$ (lattice hundreds radius), weak can be neglected safely. polarization-dependent distribution nanoparticles observed ensemble, while for dilute such not anymore. This work may help understanding transport particle ensemble.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.105.235431