Paterson, G. W. , Karimullah, A. , Williamson, S. D. R., Kadodwala, M. and MacLaren, D. A. (2015) Electron energy loss spectroscopy of a chiral plasmonic structure. Journal of Physics: Conference Series, 644(1), 012005. (doi: 10.1088/1742-6596/644/1/012005)
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Abstract
A detailed analysis of the plasmonic excitations within a nanopatterned gold chiral biosensor element, measured by scanning transmission electron microscopy electron energy loss spectroscopy, is presented. We discuss aspects of data acquisition, processing, analysis and simulation. The localised surface plasmonic resonance modes in the structure are extracted using non-negative matrix factorisation and we use simulations to correlate notable deviations from the idealised spectrum to nanometric fabrication imperfections. The methodology presented has wide applicability to a variety of metamaterials.
| Item Type: | Articles |
|---|---|
| Additional Information: | Electron Microscopy and Analysis Group Conference (EMAG2015), Manchester, UK, 29 June-2 July 2015 |
| Keywords: | plasmonic, chiral, metamaterial, STEM, EELS, electron energy loss spectroscopy, machine learning, deconvolution, biosensor |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Karimullah, Dr Affar and Paterson, Dr Gary and Kadodwala, Professor Malcolm and MacLaren, Dr Donald |
| Authors: | Paterson, G. W., Karimullah, A., Williamson, S. D. R., Kadodwala, M., and MacLaren, D. A. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Research Group: | Materials Science and Condensed Matter Physics |
| Journal Name: | Journal of Physics: Conference Series |
| Publisher: | Institute of Physics Publishing Ltd. |
| ISSN: | 1742-6588 |
| ISSN (Online): | 1742-6596 |
| Copyright Holders: | Copyright © 2015 The Authors |
| Related URLs: | |
| Data DOI: | 10.5525/gla.researchdata.195 |
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