Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system
The optical resonance of metal nanoparticles can be used to enhance the generation and detection of their main vibrational mode. In this work, we show that this method allows the accurate characterisation of the particle’s size because the vibrational frequency of plasmonic nanoparticles only depend...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MPDI
2017
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| Online Access: | https://eprints.nottingham.ac.uk/44889/ |
| _version_ | 1848797021585014784 |
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| author | Fuentes-Domínguez, Rafael Smith, Richard J. Pérez-Cota, Fernando Marques, Leonel Peña-Rodríguez, Ovidio Clark, Matt |
| author_facet | Fuentes-Domínguez, Rafael Smith, Richard J. Pérez-Cota, Fernando Marques, Leonel Peña-Rodríguez, Ovidio Clark, Matt |
| author_sort | Fuentes-Domínguez, Rafael |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The optical resonance of metal nanoparticles can be used to enhance the generation and detection of their main vibrational mode. In this work, we show that this method allows the accurate characterisation of the particle’s size because the vibrational frequency of plasmonic nanoparticles only depends on their mechanical properties. Moreover, by a careful selection of the particle size and/or probe laser wavelength, the detected signal can be increased by a large factor (∼9 for the particles used in this work) under the same illumination conditions. Finally, we show experimentally that particles of different sizes inside the point spread function can be observed due to the differences in their vibrational states, which could provide a feasible route to super-resolution. |
| first_indexed | 2025-11-14T19:57:15Z |
| format | Article |
| id | nottingham-44889 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T19:57:15Z |
| publishDate | 2017 |
| publisher | MPDI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-448892020-05-08T09:45:18Z https://eprints.nottingham.ac.uk/44889/ Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system Fuentes-Domínguez, Rafael Smith, Richard J. Pérez-Cota, Fernando Marques, Leonel Peña-Rodríguez, Ovidio Clark, Matt The optical resonance of metal nanoparticles can be used to enhance the generation and detection of their main vibrational mode. In this work, we show that this method allows the accurate characterisation of the particle’s size because the vibrational frequency of plasmonic nanoparticles only depends on their mechanical properties. Moreover, by a careful selection of the particle size and/or probe laser wavelength, the detected signal can be increased by a large factor (∼9 for the particles used in this work) under the same illumination conditions. Finally, we show experimentally that particles of different sizes inside the point spread function can be observed due to the differences in their vibrational states, which could provide a feasible route to super-resolution. MPDI 2017-08-10 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/44889/1/applsci-07-00819.pdf Fuentes-Domínguez, Rafael, Smith, Richard J., Pérez-Cota, Fernando, Marques, Leonel, Peña-Rodríguez, Ovidio and Clark, Matt (2017) Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system. Applied Sciences, 7 (8). 819/1-819/12. ISSN 2076-3417 plasmonics; metal nanostructures; pulsed lasers http://www.mdpi.com/2076-3417/7/8/819 doi:10.3390/app7080819 doi:10.3390/app7080819 |
| spellingShingle | plasmonics; metal nanostructures; pulsed lasers Fuentes-Domínguez, Rafael Smith, Richard J. Pérez-Cota, Fernando Marques, Leonel Peña-Rodríguez, Ovidio Clark, Matt Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| title | Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| title_full | Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| title_fullStr | Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| title_full_unstemmed | Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| title_short | Size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| title_sort | size characterisation method and detection enhancement of plasmonic nanoparticles in a pump–probe system |
| topic | plasmonics; metal nanostructures; pulsed lasers |
| url | https://eprints.nottingham.ac.uk/44889/ https://eprints.nottingham.ac.uk/44889/ https://eprints.nottingham.ac.uk/44889/ |