Optomechanical hot-spots in metallic nanorod-polymer nanocomposites
| dc.contributor.author | Vasileiadis, Thomas | |
| dc.date.accessioned | 2023-03-15T12:41:56Z | |
| dc.date.available | 2023-03-15T12:41:56Z | |
| dc.date.issued | 2022-12-07 | |
| dc.description | Experimental and computational study of optomechanical interactions in plasmonic nanorod - polymer nanocomposites. | pl |
| dc.description.abstract | Plasmonic coupling between adjacent metallic nanoparticles can be exploited for acousto-plasmonics, single-molecule sensing, and photochemistry. Light absorption or electron probes can be used to study plasmons and their interactions, but their use is challenging for disordered systems and colloids dispersed in insulating matrices. Here, we investigate the effect of plasmonic coupling on optomechanics with Brillouin light spectroscopy (BLS) in a prototypical metal–polymer nanocomposite, gold nanorods (Au NRs) in polyvinyl alcohol. The intensity of the light inelastically scattered on thermal phonons captured by BLS is strongly affected by the wavelength of the probing light. When light is resonant with the transverse plasmons, BLS reveals mostly the normal vibrational modes of single NRs. For lower energy off-resonant light, BLS is dominated by coupled bending modes of NR dimers. The experimental results, supported by optomechanical calculations, document plasmonically enhanced BLS and reveal energy-dependent confinement of coupled plasmons close to the tips of NR dimers, generating BLS hot-spots. Our work establishes BLS as an optomechanical probe of plasmons and promotes nanorod–soft matter nanocomposites for acousto-plasmonic applications. | pl |
| dc.description.sponsorship | This project has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Action Grant Agreement 101003436 – PLASMMONS. G.F. acknowledges the support by ERC AdG SmartPhon (Grant 694977). T.V. acknowledges the financial support from the Polish National Science Centre (No. UMO-2021/43/D/ST3/02526). B.G. acknowledges the financial support from the Polish National Science Centre (No. UMO-2018/31/D/ST3/03882). B.D.R. and A.N. acknowledge the computer facilities provided by the group ephoni at Institut d’Electronique, Microélectronique and Nanotechnologie, University of Lille. S.Y. acknowledges the support by the National Science Foundation (NSF), DMR/Polymer program, No. DMR-210484. | pl |
| dc.identifier.citation | ACS Nano 2022, 16, 12, 20419–20429. | pl |
| dc.identifier.doi | https://doi.org/10.1021/acsnano.2c06673 | |
| dc.identifier.uri | https://hdl.handle.net/10593/27227 | |
| dc.language.iso | eng | pl |
| dc.publisher | American Chemical Society | pl |
| dc.relation.ispartofseries | Phononic and plasmonic materials;4 | |
| dc.rights | info:eu-repo/semantics/openAccess | pl |
| dc.subject | Nanorods | pl |
| dc.subject | Plasmonics | pl |
| dc.subject | Optomechanics | pl |
| dc.subject | Nanocomposites | pl |
| dc.subject | Brillouin light scattering | pl |
| dc.title | Optomechanical hot-spots in metallic nanorod-polymer nanocomposites | pl |
| dc.type | Preprint | pl |
Files
Original bundle
1 - 2 of 2
Loading...
- Name:
- ACS_NANO_Gold_Nanorods_2022.pdf
- Size:
- 1.28 MB
- Format:
- Adobe Portable Document Format
- Description:
- Main article (PDF)
Loading...
- Name:
- Supporting_Information_ACS_NANO_Gold_Nanorods_2022.pdf
- Size:
- 1.59 MB
- Format:
- Adobe Portable Document Format
- Description:
- Supporting Information (PDF)
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.47 KB
- Format:
- Item-specific license agreed upon to submission
- Description: