Plasmonic and thermoplasmonic properties of asymmetric hexagonal nano-ring dimer
Fuente:
Zenodo
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Recurso digital |
| Lingua: | inglese |
| Pubblicazione: |
Zenodo
2022
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866901127065239552 |
|---|---|
| author | Azarian, A. Noori, F. |
| author_facet | Azarian, A. Noori, F. |
| contents | The plasmonic properties of asymmetric nanoparticles have an important role in a wide range of applications such as photonics, sensing, and catalysis. In this work, we break the symmetry of the hexagonal nano-ring dimers (HNDs). Our results show that the HNDs can confine light in subwavelength volumes and, consequently, achieve intense local electric field enhancement at resonance wavelengths. Three categories of multimodal resonances i.e. resonances that are hybrids of different multiples were studied here. On the other hand, while asymmetric nanoparticles have been mainly studied for their plasmonic properties, recently they have been used for increasing local thermal-induced processes in different fields such as bio-imaging and medical therapy. In line with this goal, we studied the thermoplasmonic properties of HNDs. We find that the maximum temperature is strongly dependent on the symmetry of nanorings i.e. the distance between the center of the cavity and the nanoparticles (d). The lowest temperature changes occur when the cavity is located in the middle of the nanoparticles due to the lowest asymmetry (?Tmax = 22C). Moreover, by increasing the value of d, due to increased hybridization, the second and third plasmonic modes are formed and the temperature increases in all three modes. The result of this work opens new possibilities for controlling photo-thermal processes such as chemical and metabolic thermal activation and local melting. 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_1007_s11082-022-04067-y |
| institution | Zenodo |
| language | eng |
| publishDate | 2022 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Plasmonic and thermoplasmonic properties of asymmetric hexagonal nano-ring dimer Azarian, A. Noori, F. Asymmetric Dimer Nano-ring SPR Thermoplasmonics The plasmonic properties of asymmetric nanoparticles have an important role in a wide range of applications such as photonics, sensing, and catalysis. In this work, we break the symmetry of the hexagonal nano-ring dimers (HNDs). Our results show that the HNDs can confine light in subwavelength volumes and, consequently, achieve intense local electric field enhancement at resonance wavelengths. Three categories of multimodal resonances i.e. resonances that are hybrids of different multiples were studied here. On the other hand, while asymmetric nanoparticles have been mainly studied for their plasmonic properties, recently they have been used for increasing local thermal-induced processes in different fields such as bio-imaging and medical therapy. In line with this goal, we studied the thermoplasmonic properties of HNDs. We find that the maximum temperature is strongly dependent on the symmetry of nanorings i.e. the distance between the center of the cavity and the nanoparticles (d). The lowest temperature changes occur when the cavity is located in the middle of the nanoparticles due to the lowest asymmetry (?Tmax = 22C). Moreover, by increasing the value of d, due to increased hybridization, the second and third plasmonic modes are formed and the temperature increases in all three modes. The result of this work opens new possibilities for controlling photo-thermal processes such as chemical and metabolic thermal activation and local melting. 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. |
| title | Plasmonic and thermoplasmonic properties of asymmetric hexagonal nano-ring dimer |
| topic | Asymmetric Dimer Nano-ring SPR Thermoplasmonics |
| url | https://doi.org/10.1007/s11082-022-04067-y |