Reduced damping of surface plasmons at low temperatures
| dc.contributor.author | Liu, Mingzhao | |
| dc.contributor.author | Pelton, Matthew | |
| dc.contributor.author | Guyot-Sionnest, Philippe | |
| dc.date.accessioned | 2023-08-14T19:11:14Z | |
| dc.date.available | 2023-08-14T19:11:14Z | |
| dc.date.issued | 2009-01-27 | |
| dc.description.abstract | We investigated the effectiveness of low temperatures in reducing plasmon damping by measuring the homogeneous linewidth of plasmon resonances (∼1.5 eV) in nanoscale gold bipyramids at temperatures from 293 to 6 K. The linewidth drops linearly with temperature and approaches a constant value at approximately 50 K. Measurements were performed on monodisperse ensembles as well as on single particles. The 30% decrease in the homogeneous linewidth with decreasing temperature is well accounted for by the reduced electron-phonon scattering. The other relaxation mechanisms—electron-electron scattering, electron-surface scattering, and radiative relaxation—do not change significantly with temperature. | en_US |
| dc.description.sponsorship | M.L. was supported by the University of Chicago MRSEC NSF-DMR under Grant No. DMR-0213745. Partial support from NSF under Grant No. NSF-CHE-0718718 is also acknowledged. Work at the Center for Nanoscale Materials was supported by the Office of Science, Office of Basic Energy Sciences, U.S. Department of Energy under Contract No. DE-AC02-06CH11357. M.L. also thanks Praket P. Jha for his help with the low-temperature measurements. | en_US |
| dc.description.uri | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.79.035418 | en_US |
| dc.format.extent | 5 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2ad0e-xsmz | |
| dc.identifier.citation | Liu, Mingzhao, Matthew Pelton, and Philippe Guyot-Sionnest. “Reduced Damping of Surface Plasmons at Low Temperatures.” Physical Review B 79, no. 3 (January 27, 2009): 035418. https://doi.org/10.1103/PhysRevB.79.035418. | en_US |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevB.79.035418 | |
| dc.identifier.uri | http://hdl.handle.net/11603/29202 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | APS | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | en_US |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Reduced damping of surface plasmons at low temperatures | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-6370-8765 | en_US |