Increased rise time of electron temperature during adiabatic plasmon focusing

DSpace/Manakin Repository

Increased rise time of electron temperature during adiabatic plasmon focusing

Citable link to this page

 

 
Title: Increased rise time of electron temperature during adiabatic plasmon focusing
Author: Lozan, Olga; Sundararaman, Ravishankar; Ea-Kim, Buntha; Rampnoux, Jean-Michel; Narang, Prineha; Dilhaire, Stefan; Lalanne, Philippe

Note: Order does not necessarily reflect citation order of authors.

Citation: Lozan, Olga, Ravishankar Sundararaman, Buntha Ea-Kim, Jean-Michel Rampnoux, Prineha Narang, Stefan Dilhaire, and Philippe Lalanne. 2017. “Increased rise time of electron temperature during adiabatic plasmon focusing.” Nature Communications 8 (1): 1656. doi:10.1038/s41467-017-01802-y. http://dx.doi.org/10.1038/s41467-017-01802-y.
Full Text & Related Files:
Abstract: Decay of plasmons to hot carriers has recently attracted considerable interest for fundamental studies and applications in quantum plasmonics. Although plasmon-assisted hot carriers in metals have already enabled remarkable physical and chemical phenomena, much remains to be understood to engineer devices. Here, we present an analysis of the spatio-temporal dynamics of hot electrons in an emblematic plasmonic device, the adiabatic nanofocusing surface-plasmon taper. With femtosecond-resolution measurements, we confirm the extraordinary capability of plasmonic tapers to generate hot carriers by slowing down plasmons at the taper apex. The measurements also evidence a substantial increase of the “lifetime” of the electron gas temperature at the apex. This interesting effect is interpreted as resulting from an intricate heat flow at the apex. The ability to harness the “lifetime” of hot-carrier gases with nanoscale circuits may provide a multitude of applications, such as hot-spot management, nonequilibrium hot-carrier generation, sensing, and photovoltaics.
Published Version: doi:10.1038/s41467-017-01802-y
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5698320/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:34493388
Downloads of this work:

Show full Dublin Core record

This item appears in the following Collection(s)

 
 

Search DASH


Advanced Search
 
 

Submitters