Unveiling Nanometer Scale Extinction and Scattering Phenomena through Combined Electron Energy Loss Spectroscopy and Cathodoluminescence Measurements
(2015) In Nano Letters 15(2). p.1229-1237- Abstract
- Plasmon modes of the exact same individual gold nanoprisms are investigated through combined nanometer-resolved electron energy-loss spectroscopy (EELS) and cathodoluminescence (CL) measurements. We show that CL only probes the radiative modes, in contrast to EELS, which additionally reveals dark modes. The combination of both techniques on the same particles thus provides complementary information and also demonstrates that although the radiative modes give rise to very similar spatial distributions when probed by EELS or CL, their resonant energies appear to be different. We trace this phenomenon back to plasmon dissipation, which affects in different ways the plasmon signatures probed by these techniques. Our experiments are in... (More)
- Plasmon modes of the exact same individual gold nanoprisms are investigated through combined nanometer-resolved electron energy-loss spectroscopy (EELS) and cathodoluminescence (CL) measurements. We show that CL only probes the radiative modes, in contrast to EELS, which additionally reveals dark modes. The combination of both techniques on the same particles thus provides complementary information and also demonstrates that although the radiative modes give rise to very similar spatial distributions when probed by EELS or CL, their resonant energies appear to be different. We trace this phenomenon back to plasmon dissipation, which affects in different ways the plasmon signatures probed by these techniques. Our experiments are in agreement with electromagnetic numerical simulations and can be further interpreted within the framework of a quasistatic analytical model. We therefore demonstrate that CL and EELS are closely related to optical scattering and extinction, respectively, with the addition of nanometer spatial resolution. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5160291
- author
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- nanooptics, plasmonics, electron energy loss spectroscopy, cathodoluminescence, bright and dark modes, light scattering
- in
- Nano Letters
- volume
- 15
- issue
- 2
- pages
- 1229 - 1237
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000349578000067
- scopus:84922743928
- pmid:25603194
- ISSN
- 1530-6992
- DOI
- 10.1021/nl5043775
- language
- English
- LU publication?
- yes
- id
- 1b6eefad-c409-4a99-831b-ec1b1c8af23b (old id 5160291)
- date added to LUP
- 2016-04-01 13:45:27
- date last changed
- 2022-03-29 17:11:20
@article{1b6eefad-c409-4a99-831b-ec1b1c8af23b, abstract = {{Plasmon modes of the exact same individual gold nanoprisms are investigated through combined nanometer-resolved electron energy-loss spectroscopy (EELS) and cathodoluminescence (CL) measurements. We show that CL only probes the radiative modes, in contrast to EELS, which additionally reveals dark modes. The combination of both techniques on the same particles thus provides complementary information and also demonstrates that although the radiative modes give rise to very similar spatial distributions when probed by EELS or CL, their resonant energies appear to be different. We trace this phenomenon back to plasmon dissipation, which affects in different ways the plasmon signatures probed by these techniques. Our experiments are in agreement with electromagnetic numerical simulations and can be further interpreted within the framework of a quasistatic analytical model. We therefore demonstrate that CL and EELS are closely related to optical scattering and extinction, respectively, with the addition of nanometer spatial resolution.}}, author = {{Losquin, Arthur and Zagonel, Luiz F. and Myroshnychenko, Viktor and Rodriguez-Gonzalez, Benito and Tence, Marcel and Scarabelli, Leonardo and Foerstner, Jens and Liz-Marzan, Luis M. and Javier Garcia de Abajo, F. and Stephan, Odile and Kociak, Mathieu}}, issn = {{1530-6992}}, keywords = {{nanooptics; plasmonics; electron energy loss spectroscopy; cathodoluminescence; bright and dark modes; light scattering}}, language = {{eng}}, number = {{2}}, pages = {{1229--1237}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Nano Letters}}, title = {{Unveiling Nanometer Scale Extinction and Scattering Phenomena through Combined Electron Energy Loss Spectroscopy and Cathodoluminescence Measurements}}, url = {{http://dx.doi.org/10.1021/nl5043775}}, doi = {{10.1021/nl5043775}}, volume = {{15}}, year = {{2015}}, }