Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations
We present a computational study of the near-field enhancement properties from a plasmonic nanomaterial based on a silver nanoparticle on a gold film. Our simulation studies show a clear distinguishability between nanoparticle mode and gap mode as a function of dielectric layer thickness. The observ...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-07-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/8/8/582 |
| _version_ | 1811327254818455552 |
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| author | Vasanthan Devaraj Jong-Min Lee Jin-Woo Oh |
| author_facet | Vasanthan Devaraj Jong-Min Lee Jin-Woo Oh |
| author_sort | Vasanthan Devaraj |
| collection | DOAJ |
| description | We present a computational study of the near-field enhancement properties from a plasmonic nanomaterial based on a silver nanoparticle on a gold film. Our simulation studies show a clear distinguishability between nanoparticle mode and gap mode as a function of dielectric layer thickness. The observed nanoparticle mode is independent of dielectric layer thickness, and hence its related plasmonic properties can be investigated clearly by having a minimum of ~10-nm-thick dielectric layer on a metallic film. In case of the gap mode, the presence of minimal dielectric layer thickness is crucial (~≤4 nm), as deterioration starts rapidly thereafter. The proposed simple tunable gap-based particle on film design might open interesting studies in the field of plasmonics, extreme light confinement, sensing, and source enhancement of an emitter. |
| first_indexed | 2024-04-13T15:03:23Z |
| format | Article |
| id | doaj.art-7e545cdf5b60472588a31c316882e50b |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-13T15:03:23Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-7e545cdf5b60472588a31c316882e50b2022-12-22T02:42:14ZengMDPI AGNanomaterials2079-49912018-07-018858210.3390/nano8080582nano8080582Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD SimulationsVasanthan Devaraj0Jong-Min Lee1Jin-Woo Oh2Research Center for Energy Convergence and Technology Division, Pusan National University, Busan 46241, KoreaResearch Center for Energy Convergence and Technology Division, Pusan National University, Busan 46241, KoreaResearch Center for Energy Convergence and Technology Division, Pusan National University, Busan 46241, KoreaWe present a computational study of the near-field enhancement properties from a plasmonic nanomaterial based on a silver nanoparticle on a gold film. Our simulation studies show a clear distinguishability between nanoparticle mode and gap mode as a function of dielectric layer thickness. The observed nanoparticle mode is independent of dielectric layer thickness, and hence its related plasmonic properties can be investigated clearly by having a minimum of ~10-nm-thick dielectric layer on a metallic film. In case of the gap mode, the presence of minimal dielectric layer thickness is crucial (~≤4 nm), as deterioration starts rapidly thereafter. The proposed simple tunable gap-based particle on film design might open interesting studies in the field of plasmonics, extreme light confinement, sensing, and source enhancement of an emitter.http://www.mdpi.com/2079-4991/8/8/582plasmonicssimulationsmetallic nanostructuresnear-field enhancementplasmonic modesparticle on a film |
| spellingShingle | Vasanthan Devaraj Jong-Min Lee Jin-Woo Oh Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations Nanomaterials plasmonics simulations metallic nanostructures near-field enhancement plasmonic modes particle on a film |
| title | Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations |
| title_full | Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations |
| title_fullStr | Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations |
| title_full_unstemmed | Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations |
| title_short | Distinguishable Plasmonic Nanoparticle and Gap Mode Properties in a Silver Nanoparticle on a Gold Film System Using Three-Dimensional FDTD Simulations |
| title_sort | distinguishable plasmonic nanoparticle and gap mode properties in a silver nanoparticle on a gold film system using three dimensional fdtd simulations |
| topic | plasmonics simulations metallic nanostructures near-field enhancement plasmonic modes particle on a film |
| url | http://www.mdpi.com/2079-4991/8/8/582 |
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