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Thermal Confinement in Plasmonic Nanoparticles under Generalised Pulsed Illumination — arXiv:2610.21698

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.21698
License (as archived): CC0-1.0
Archived: 2026-10-16T10:49:42.680Z
SHA-256 of the archived text: a805e57a4671e5df62e3082b8528a58dc7d9f339e46f965ff41f8296849c095a
Stable URL of this page: https://metraipolis.com/documento/dc_6bf42b263bcd

How to cite

Thermal Confinement in Plasmonic Nanoparticles under Generalised Pulsed Illumination — arXiv:2610.21698 — arXiv (en), https://arxiv.org/abs/2610.21698 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_6bf42b263bcd (Metraipolis archive dc_6bf42b263bcd, sha256 a805e57a4671e5df62e3082b8528a58dc7d9f339e46f965ff41f8296849c095a)

BibTeX

@misc{dc6bf42b263bcd,
  title = {Thermal Confinement in Plasmonic Nanoparticles under Generalised Pulsed Illumination — arXiv:2610.21698},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.21698},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_6bf42b263bcd; sha256 a805e57a4671e5df62e3082b8528a58dc7d9f339e46f965ff41f8296849c095a},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.21698. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Thermal confinement is a key parameter in photothermal applications, as it determines the spatial extent of the region affected by the generated heat. In this work, we develop a numerical treatment to quantify thermal confinement in spherical plasmonic nanoparticles under excitation conditions ranging from ultrashort pulses to the continuous-wave regime. The model combines generalized optical heating with a finite-difference solution of the transient heat equation and explicitly accounts for finite interfacial thermal conductance. To characterize the spatial distribution of heat, we introduce a thermal confinement radius defined from the temporal temperature envelope in the surrounding medium. We demonstrate that pulse duration acts as a highly effective, tuneable parameter to govern thermal confinement. Notably, we quantitatively show that finite interfacial thermal conductance can induce deviations of up to 20% in the spatial confinement radius and over 60% in the transient thermal construct under ultrashort excitation. By comparing the characteristic dimensions of representative targeting ligands with the resulting thermal-confinement length scales, we show how pulse duration can be precisely tailored to control target heating. These results provide a unified framework for predicting nanoscale heat localization paving the way for the rational design of high precision thermoplasmonic applications.

Tema degli esploratori: fisica e astronomia (elenco arXiv physics.comp-ph, nuovi lavori del giorno).
Categorie arXiv: Optics (physics.optics) ; Applied Physics (physics.app-ph); Computational Physics (physics.comp-ph).
Pagina del lavoro: https://arxiv.org/abs/2610.21698 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-16T08:56:22.213Z dalla pagina https://arxiv.org/list/physics.comp-ph/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).