Resonant Coupling and Gain Singularities in Metal/Dielectric Multishells: Quasi-Static Versus T-Matrix Calculations
| العنوان: | Resonant Coupling and Gain Singularities in Metal/Dielectric Multishells: Quasi-Static Versus T-Matrix Calculations |
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| المؤلفون: | Antonio De Luca, Maria Antonia Iatì, Onofrio M. Maragò, Luigia Pezzi, Rosalba Saija |
| المصدر: | Journal of physical chemistry. C 123 (2019): 29291–29297. doi:10.1021/acs.jpcc.9b07489 info:cnr-pdr/source/autori:Pezzi L.; Iati M.A.; Saija R.; De Luca A.; Marago O.M./titolo:Resonant Coupling and Gain Singularities in Metal%2FDielectric Multishells: Quasi-Static Versus T-Matrix Calculations/doi:10.1021%2Facs.jpcc.9b07489/rivista:Journal of physical chemistry. C/anno:2019/pagina_da:29291/pagina_a:29297/intervallo_pagine:29291–29297/volume:123 |
| بيانات النشر: | American Chemical Society (ACS), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, Nanoparticle, OPTICAL FORCES, NANOPARTICLES, NANOMATRYOSHKAS, ENHANCEMENT, NANOSHELLS, SCATTERING, Dielectric, light scattering, Molecular physics, plasmonics, Light scattering, Metal, Condensed Matter::Materials Science, ENHANCEMENT, NANOPARTICLES, SCATTERING, OPTICAL FORCES, Physical and Theoretical Chemistry, NANOSHELLS, Doping, NANOMATRYOSHKAS, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Dipole, General Energy, visual_art, visual_art.visual_art_medium, Gravitational singularity, T-matrix, Quasistatic process |
| الوصف: | We investigate the resonant gain response in doped multishell hybrid nanoparticles made of concentric and alternated doped dielectric and metal shells. In particular, we compare the enhanced extinction properties calculated in a quasi-static approximation with accurate light scattering calculations in the T-matrix formalism. We show that, even for small hybrid particles, a difference in the calculated optoplasmonic mode yields a dramatic change in the resonant coupling with the doped molecular system. Thus, although a simple dipole approach gives a fast qualitative view of the multishell gain-assisted response, a complete light scattering framework is crucial for a quantitative investigation of these hybrid nanosystems. |
| تدمد: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.9b07489 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d3d2c4f749a85e798b8de6852bc8b90 https://doi.org/10.1021/acs.jpcc.9b07489 |
| Rights: | RESTRICTED |
| رقم الانضمام: | edsair.doi.dedup.....8d3d2c4f749a85e798b8de6852bc8b90 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19327455 19327447 |
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| DOI: | 10.1021/acs.jpcc.9b07489 |