http://www.cnr.it/ontology/cnr/individuo/prodotto/ID280740
Intrinsic linewidth of the plasmonic resonance in a micrometric metal mesh (Articolo in rivista)
- Type
- Label
- Intrinsic linewidth of the plasmonic resonance in a micrometric metal mesh (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1364/OE.21.015401 (literal)
- Alternative label
Baldassarre, L.a , Ortolani, M.bc, Nucara, A.b, Maselli, P.b, Di Gaspare, A.c, Giliberti, V.c, Calvani, P.b (2013)
Intrinsic linewidth of the plasmonic resonance in a micrometric metal mesh
in Optics express
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Baldassarre, L.a , Ortolani, M.bc, Nucara, A.b, Maselli, P.b, Di Gaspare, A.c, Giliberti, V.c, Calvani, P.b (literal)
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-84879916495&partnerID=q2rCbXpz (literal)
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- a Center for Life NanoScience at Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00185 Rome, Italy
b CNR-SPIN and Sapienza Universitá di Roma, P.le Aldo Moro 2, 00185 Rome, Italy
c CNR-IFN, Via Cineto Romano 42, 00156 Rome, Italy (literal)
- Titolo
- Intrinsic linewidth of the plasmonic resonance in a micrometric metal mesh (literal)
- Abstract
- The intrinsic linewidth and angular dispersion of Surface Plasmon Polariton resonance of a micrometric metal mesh have been measured with a collimated mid-infrared beam, provided by an External Cavity tunable Quantum Cascade Laser. We show that the use of a collimated beam yields an observed resonance linewidth ? = 12 cm-1 at the resonance frequency v0 = 1658 cm-1, better by an order of magnitude than with a non-collimated beam. The extremely narrow plasmon resonance attained by our mesh is then exploited to reconstruct, by varying the QCL angle of incidence 0, the angular intensity distribution f (0) of a globar at the focal plane of a conventional imaging setup. We thus show that f (0) is better reproduced by a Gaussian distribution than by a uniform one, in agreement with ray-tracing simulation. © 2013 Optical Society of America. (literal)
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