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Botey, M.; Maymó, M.; Molinos-Gómez, A.; Dorado, L.; Depine, R.A.; Lozano, G.; Mihi, A.; Míguez, H.; Martorell, J. "Light generation at the anomalous dispersion high energy range of a nonlinear opal film" (2009) Optics Express. 17(15):12210-12216
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Abstract:

We study experimentally and theoretically light propagation and generation at the high energy range of a close-packed fcc photonic crystal of polystyrene spheres coated with a nonlinear material. We observe an enhancement of the second harmonic generation of light that may be explained on the basis of amplification effects arising from propagation at anomalous group velocities. Theoretical calculations are performed to support this assumption. The vector KKR method we use allows us to determine, from the linear response of the crystal, the behavior of the group velocity in our finite photonic structures when losses introduced by absorption or scattering by defects are taken into account assuming a nonzero imaginary part for the dielectric constant. In such structures, we predict large variations of the group velocity for wavelengths on the order or smaller than the lattice constant of the structure, where an anomalous group velocity behavior is associated with the flat bands of the photonic band structure. We find that a direct relation may be established between the group velocity reduction and the enhancement of a light generation processes such as the second harmonic generation we consider. However, frequencies for which the enhancement is found, in the finite photonic crystals we use, do not necessarily coincide with the frequencies of flat high energy bands. © 2009 Optical Society of America.

Registro:

Documento: Artículo
Título:Light generation at the anomalous dispersion high energy range of a nonlinear opal film
Autor:Botey, M.; Maymó, M.; Molinos-Gómez, A.; Dorado, L.; Depine, R.A.; Lozano, G.; Mihi, A.; Míguez, H.; Martorell, J.
Filiación:Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Barcelona, Spain
ICFO-Institut de Ciències Fotòniques, Parc Mediterrani de la Tecnologia, Av. del Canal Olímpic s/n, 08860 Castelldefels (Barcelona), Spain
BASF Construction Chemicals España, S.L., C/Basters, 15 E-08184, Palau-solita i Plegamans, Barcelona 08184, Spain
Grupo de Electromagnetismo Aplicado, Departamento de Física, Facultad de Ciencias Exactas y Maturates, Buenos Aires, Argentina
Instituto de Ciencia de Materiales de Sevilla, Consejo Superior de Investigaciones Científicas (CSIC), Américo Vespucio 49, 41092 Sevilla, Spain
Palabras clave:Band structure; Harmonic generation; Light velocity; Nonlinear optics; Photonic crystals; Amplification effects; Anomalous dispersion; Group velocity reduction; Nonlinear materials; Photonic band structures; Photonic structure; Polystyrene spheres; Theoretical calculations; Velocity; microsphere; polystyrene derivative; article; chemistry; crystallization; light; optics; photon; radiation scattering; statistical model; theoretical model; Crystallization; Light; Microspheres; Models, Statistical; Models, Theoretical; Optics and Photonics; Photons; Polystyrenes; Scattering, Radiation
Año:2009
Volumen:17
Número:15
Página de inicio:12210
Página de fin:12216
DOI: http://dx.doi.org/10.1364/OE.17.012210
Título revista:Optics Express
Título revista abreviado:Opt. Express
ISSN:10944087
CAS:Polystyrenes
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v17_n15_p12210_Botey

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Citas:

---------- APA ----------
Botey, M., Maymó, M., Molinos-Gómez, A., Dorado, L., Depine, R.A., Lozano, G., Mihi, A.,..., Martorell, J. (2009) . Light generation at the anomalous dispersion high energy range of a nonlinear opal film. Optics Express, 17(15), 12210-12216.
http://dx.doi.org/10.1364/OE.17.012210
---------- CHICAGO ----------
Botey, M., Maymó, M., Molinos-Gómez, A., Dorado, L., Depine, R.A., Lozano, G., et al. "Light generation at the anomalous dispersion high energy range of a nonlinear opal film" . Optics Express 17, no. 15 (2009) : 12210-12216.
http://dx.doi.org/10.1364/OE.17.012210
---------- MLA ----------
Botey, M., Maymó, M., Molinos-Gómez, A., Dorado, L., Depine, R.A., Lozano, G., et al. "Light generation at the anomalous dispersion high energy range of a nonlinear opal film" . Optics Express, vol. 17, no. 15, 2009, pp. 12210-12216.
http://dx.doi.org/10.1364/OE.17.012210
---------- VANCOUVER ----------
Botey, M., Maymó, M., Molinos-Gómez, A., Dorado, L., Depine, R.A., Lozano, G., et al. Light generation at the anomalous dispersion high energy range of a nonlinear opal film. Opt. Express. 2009;17(15):12210-12216.
http://dx.doi.org/10.1364/OE.17.012210