Anisotropy in the nonlinear absorption of elongated silver nanoparticles in silica, probed by femtosecond pulses
Por:
Rangel-Rojo R., McCarthy J., Bookey H.T., Kar A.K., Rodriguez-Fernandez L., Cheang-Wong J.C., Crespo-Sosa A., Lopez-Suarez A., Oliver A., Rodriguez-Iglesias V., Silva-Pereyra H.G.
Publicada:
1 may 2009
Resumen:
We present measurements of the anisotropy of the nonlinear absorption of a silica matrix doped with aligned spheroidal silver nanoparticles, produced by a double ion-implantation process of silver nanoparticles followed by an irradiation with Si ions. The nonlinear response was studied using the z-scan technique with fs pulses at 530 nm, which lies very close to the surface-plasmon absorption peak of the sample. The observed saturable absorption is studied for different angles of the input linear polarization of the pulses, showing a strong anisotropy, which is consistent with the fact that the nanorods are aligned. © 2009 Elsevier B.V. All rights reserved.
Filiaciones:
Rangel-Rojo R.:
Departamento de Optica, Centro de Investigación Científica y de Educación Superior de Ensenada, Apartado Postal 2732, Ensenada, BC 22860, Mexico
McCarthy J.:
School of Engineering and Physical Sciences, Heriot-Watt University, David Brewster Building, Edinburgh, EH14 4AS Scotland, United Kingdom
Bookey H.T.:
School of Engineering and Physical Sciences, Heriot-Watt University, David Brewster Building, Edinburgh, EH14 4AS Scotland, United Kingdom
Kar A.K.:
School of Engineering and Physical Sciences, Heriot-Watt University, David Brewster Building, Edinburgh, EH14 4AS Scotland, United Kingdom
Rodriguez-Fernandez L.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Cheang-Wong J.C.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Crespo-Sosa A.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Lopez-Suarez A.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Oliver A.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Rodriguez-Iglesias V.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Silva-Pereyra H.G.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
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