Nano-Sized light emitting devices have a wide range of potential applications, from medicine to all-optical computing. Surface plasmon amplification by stimulated emission of radiation (SPASER) have recently attracted considerable attention providing the smallest reliable lasers. Plasmonic assisted lasing has been demonstrated in a variety of geometries, embedded in or embedding a gain media. Despite these efforts, the physics underlying a realistic SPASER remains to date only drafted, because of the controversial and the limited number of experimental results. Here we demonstrate unambiguous coherent emission from polyhedral silver nano-particles dispersed in liquid gain media evidenced clearly by the narrowing of the spectral linewidth up to 3-5 nm, the several competing SPASER modes and the nonlinear effects as emission saturation and energy dependent spectral shifts. These novel results open the way to a variety of applications, as the emission of ultrashort optical pulses from nano-size lasers.
%0 Journal Article
%1 2012arXiv1208.5321G
%A Ghofraniha, N.
%A Andr`e, P.
%A Di falco, A.
%A Conti, C.
%D 2012
%J ArXiv e-prints arXiv:1208.5321
%K - Condensed Matter Optics, Physics Soft myown
%T Multimode SPASER in nano-colloidal plasmonic systems
%U http://adsabs.harvard.edu/abs/2012arXiv1208.5321G
%X Nano-Sized light emitting devices have a wide range of potential applications, from medicine to all-optical computing. Surface plasmon amplification by stimulated emission of radiation (SPASER) have recently attracted considerable attention providing the smallest reliable lasers. Plasmonic assisted lasing has been demonstrated in a variety of geometries, embedded in or embedding a gain media. Despite these efforts, the physics underlying a realistic SPASER remains to date only drafted, because of the controversial and the limited number of experimental results. Here we demonstrate unambiguous coherent emission from polyhedral silver nano-particles dispersed in liquid gain media evidenced clearly by the narrowing of the spectral linewidth up to 3-5 nm, the several competing SPASER modes and the nonlinear effects as emission saturation and energy dependent spectral shifts. These novel results open the way to a variety of applications, as the emission of ultrashort optical pulses from nano-size lasers.
@article{2012arXiv1208.5321G,
abstract = {Nano-Sized light emitting devices have a wide range of potential applications, from medicine to all-optical computing. Surface plasmon amplification by stimulated emission of radiation (SPASER) have recently attracted considerable attention providing the smallest reliable lasers. Plasmonic assisted lasing has been demonstrated in a variety of geometries, embedded in or embedding a gain media. Despite these efforts, the physics underlying a realistic SPASER remains to date only drafted, because of the controversial and the limited number of experimental results. Here we demonstrate unambiguous coherent emission from polyhedral silver nano-particles dispersed in liquid gain media evidenced clearly by the narrowing of the spectral linewidth up to 3-5 nm, the several competing SPASER modes and the nonlinear effects as emission saturation and energy dependent spectral shifts. These novel results open the way to a variety of applications, as the emission of ultrashort optical pulses from nano-size lasers.},
added-at = {2016-08-08T09:50:00.000+0200},
adsnote = {Provided by the SAO/NASA Astrophysics Data System},
adsurl = {http://adsabs.harvard.edu/abs/2012arXiv1208.5321G},
archiveprefix = {arXiv},
author = {Ghofraniha, N. and Andr`e, P. and Di falco, A. and Conti, C.},
biburl = {https://www.bibsonomy.org/bibtex/27367a29272deff6812770d31d3f7f13a/nonlinearxwaves},
eprint = {http://arxiv.org/abs/1208.5321},
interhash = {97c18fcb626d75421fda7d4aacfe3ca0},
intrahash = {7367a29272deff6812770d31d3f7f13a},
journal = {ArXiv e-prints arXiv:1208.5321},
keywords = {- Condensed Matter Optics, Physics Soft myown},
month = aug,
primaryclass = {physics.optics},
timestamp = {2016-08-08T09:54:13.000+0200},
title = {Multimode SPASER in nano-colloidal plasmonic systems},
url = {http://adsabs.harvard.edu/abs/2012arXiv1208.5321G},
year = 2012
}