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Peer-reviewedCC BY-SAJournal of Physical Chemistry Letters

Surface Plasmons in the Continuum

  • Mohit Chaudhary
  • Hans-Christian Weissker
  • Daniele Toffoli
  • Mauro Stener
  • Victor Despré
  • Franck Rabilloud
  • Jean Lermé
  • Rajarshi Sinha-Roy
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Abstract

The interest to foster plasmonic applications at energies in the ultra-violet, has escalated research initiatives in clusters of unconventional plasmonic materials like aluminum and indium,for which the surface-plasmon resonance appears above the ionization potential. Naturally, the quantum mechanical description calls for the incorporation of the ionization process, thereby making the ab initio calculations challenging. We present a robust approach within the time-evolution formalism of the time-dependent density-functional theory to calculate surface plasmon resonance in the continuum of metal clusters. Using the much studied Al13- as a system of reference, we show that accurate description of the continuum and of the ionization of the cluster allow to capture a broad surface-plasmon in the UV. Application of this approach in aluminum clusters has given the size-dependent evolution from discrete spectral features in Al6 to the surface-plasmon in larger clusters in the deep ultra-violet.

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Cite

BibTeXRIS
BibTeX
@article{chaudhary2026surface,
  title = {{Surface Plasmons in the Continuum}},
  author = {Mohit Chaudhary and Hans-Christian Weissker and Daniele Toffoli and Mauro Stener and Victor Despré and Franck Rabilloud and Jean Lermé and Rajarshi Sinha-Roy},
  journal = {Journal of Physical Chemistry Letters},
  year = {2026},
  month = sep,
  doi = {10.1021/acs.jpclett.6c01682},
  eprint = {2604.12008},
  archivePrefix = {arXiv},
  url = {https://hal.science/hal-05759924v1},
  note = {CC BY-SA},
}
RIS
TY  - JOUR
TI  - Surface Plasmons in the Continuum
AU  - Mohit Chaudhary
AU  - Hans-Christian Weissker
AU  - Daniele Toffoli
AU  - Mauro Stener
AU  - Victor Despré
AU  - Franck Rabilloud
AU  - Jean Lermé
AU  - Rajarshi Sinha-Roy
PY  - 2026
DA  - 2026/09/22
JO  - Journal of Physical Chemistry Letters
DO  - 10.1021/acs.jpclett.6c01682
UR  - https://hal.science/hal-05759924v1
AB  - The interest to foster plasmonic applications at energies in the ultra-violet, has escalated research initiatives in clusters of unconventional plasmonic materials like aluminum and indium,for which the surface-plasmon resonance appears above the ionization potential. Naturally, the quantum mechanical description calls for the incorporation of the ionization process, thereby making the ab initio calculations challenging. We present a robust approach within the time-evolution formalism of the time-dependent density-functional theory to calculate surface plasmon resonance in the continuum of metal clusters. Using the much studied Al_13^- as a system of reference, we show that accurate description of the continuum and of the ionization of the cluster allow to capture a broad surface-plasmon in the UV. Application of this approach in aluminum clusters has given the size-dependent evolution from discrete spectral features in Al_6 to the surface-plasmon in larger clusters in the deep ultra-violet.
SN  - 1948-7185
SN  - 1948-7185
ER  -