Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement
The surface-response formalism (SRF), where quantum surface-response corrections are incorporated into the classical electromagnetic theory via the Feibelman parameters, serves to address quantum effects in the optical response of metallic nanostructures. So far, the Feibelman parameters have been t...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-06-01
|
| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2023-0178 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850159251470680064 |
|---|---|
| author | Babaze Antton Neuman Tomáš Esteban Ruben Aizpurua Javier Borisov Andrei G. |
| author_facet | Babaze Antton Neuman Tomáš Esteban Ruben Aizpurua Javier Borisov Andrei G. |
| author_sort | Babaze Antton |
| collection | DOAJ |
| description | The surface-response formalism (SRF), where quantum surface-response corrections are incorporated into the classical electromagnetic theory via the Feibelman parameters, serves to address quantum effects in the optical response of metallic nanostructures. So far, the Feibelman parameters have been typically obtained from many-body calculations performed in the long-wavelength approximation, which neglects the nonlocality of the optical response in the direction parallel to the metal–dielectric interface, thus preventing to address the optical response of systems with extreme field confinement. To improve this approach, we introduce a dispersive SRF based on a general Feibelman parameter d
⊥(ω, k
‖), which is a function of both the excitation frequency, ω, and the wavenumber parallel to the planar metal surface, k
‖. An explicit comparison with time-dependent density functional theory (TDDFT) results shows that the dispersive SRF correctly describes the plasmonic response of planar and nonplanar systems featuring extreme field confinement. This work thus significantly extends the applicability range of the SRF, contributing to the development of computationally efficient semiclassical descriptions of light–matter interaction that capture quantum effects. |
| format | Article |
| id | doaj-art-dfcaa12a381348c1a246e9f02c448865 |
| institution | OA Journals |
| issn | 2192-8614 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-dfcaa12a381348c1a246e9f02c4488652025-08-20T02:23:35ZengDe GruyterNanophotonics2192-86142023-06-0112163277328910.1515/nanoph-2023-0178Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinementBabaze Antton0Neuman Tomáš1Esteban Ruben2Aizpurua Javier3Borisov Andrei G.4Materials Physics Center CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018, Donostia-San Sebastián, SpainInstitut des Sciences Moléculaires d’Orsay, UMR 8214 CNRS-Université Paris-Saclay, Bât. 520, 91405Orsay Cedex, FranceMaterials Physics Center CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018, Donostia-San Sebastián, SpainMaterials Physics Center CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018, Donostia-San Sebastián, SpainInstitut des Sciences Moléculaires d’Orsay, UMR 8214 CNRS-Université Paris-Saclay, Bât. 520, 91405Orsay Cedex, FranceThe surface-response formalism (SRF), where quantum surface-response corrections are incorporated into the classical electromagnetic theory via the Feibelman parameters, serves to address quantum effects in the optical response of metallic nanostructures. So far, the Feibelman parameters have been typically obtained from many-body calculations performed in the long-wavelength approximation, which neglects the nonlocality of the optical response in the direction parallel to the metal–dielectric interface, thus preventing to address the optical response of systems with extreme field confinement. To improve this approach, we introduce a dispersive SRF based on a general Feibelman parameter d ⊥(ω, k ‖), which is a function of both the excitation frequency, ω, and the wavenumber parallel to the planar metal surface, k ‖. An explicit comparison with time-dependent density functional theory (TDDFT) results shows that the dispersive SRF correctly describes the plasmonic response of planar and nonplanar systems featuring extreme field confinement. This work thus significantly extends the applicability range of the SRF, contributing to the development of computationally efficient semiclassical descriptions of light–matter interaction that capture quantum effects.https://doi.org/10.1515/nanoph-2023-0178feibelman parametersnonlocalityplasmonicsquantum surface effectssurface responsetime-dependent density functional theory |
| spellingShingle | Babaze Antton Neuman Tomáš Esteban Ruben Aizpurua Javier Borisov Andrei G. Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement Nanophotonics feibelman parameters nonlocality plasmonics quantum surface effects surface response time-dependent density functional theory |
| title | Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement |
| title_full | Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement |
| title_fullStr | Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement |
| title_full_unstemmed | Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement |
| title_short | Dispersive surface-response formalism to address nonlocality in extreme plasmonic field confinement |
| title_sort | dispersive surface response formalism to address nonlocality in extreme plasmonic field confinement |
| topic | feibelman parameters nonlocality plasmonics quantum surface effects surface response time-dependent density functional theory |
| url | https://doi.org/10.1515/nanoph-2023-0178 |
| work_keys_str_mv | AT babazeantton dispersivesurfaceresponseformalismtoaddressnonlocalityinextremeplasmonicfieldconfinement AT neumantomas dispersivesurfaceresponseformalismtoaddressnonlocalityinextremeplasmonicfieldconfinement AT estebanruben dispersivesurfaceresponseformalismtoaddressnonlocalityinextremeplasmonicfieldconfinement AT aizpuruajavier dispersivesurfaceresponseformalismtoaddressnonlocalityinextremeplasmonicfieldconfinement AT borisovandreig dispersivesurfaceresponseformalismtoaddressnonlocalityinextremeplasmonicfieldconfinement |