Back to Search
Start Over
Liquid plasmonics: manipulating surface plasmon polaritons via phase transitions.
- Source :
-
Nano letters [Nano Lett] 2012 Aug 08; Vol. 12 (8), pp. 4324-8. Date of Electronic Publication: 2012 Jul 31. - Publication Year :
- 2012
-
Abstract
- This paper reports the manipulation of surface plasmon polaritons (SPPs) in a liquid plasmonic metal by changing its physical phase. Dynamic properties were controlled by solid-to-liquid phase transitions in 1D Ga gratings that were fabricated using a simple molding process. Solid and liquid phases were found to exhibit different plasmonic properties, where light coupled to SPPs more efficiently in the liquid phase. We exploited the supercooling characteristics of Ga to access plasmonic properties associated with the liquid phase over a wider temperature range (up to 30 °C below the melting point of bulk Ga). Ab initio density functional theory-molecular dynamic calculations showed that the broadening of the solid-state electronic band structure was responsible for the superior plasmonic properties of the liquid metal.
Details
- Language :
- English
- ISSN :
- 1530-6992
- Volume :
- 12
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Nano letters
- Publication Type :
- Academic Journal
- Accession number :
- 22823536
- Full Text :
- https://doi.org/10.1021/nl302053g