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Measurement of the dispersion of air and of refractive index anomalies by wavelength- dependent nonlinear interferometry

Autor
Macovez, R.; Mariano, M.; Di Finizio, S.; Martorell, J.
Tipus d'activitat
Article en revista
Revista
Optics express
Data de publicació
2009-07-27
Volum
17
Número
16
Pàgina inicial
13881
Pàgina final
13888
Projecte finançador
Materiales orgánicos nano-estructurados para la conversión energética fotovoltaica
Repositori
http://hdl.handle.net/2117/8221 Obrir en finestra nova
URL
http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww%2Eopticsinfobase%2Eorg%2FDirectPDFAccess%2F82ACC92B%2DBDB9%2D137E%2DC659526277DED309%5F183847%2Epdf%3Fda%3D1%26id%3D183847%26seq%3D0%26mobile%3Dno&org= Obrir en finestra nova
Resum
We carry out wavelength-dependent second harmonic interference experiments using thin films of an organic dye as nonlinear optical sources. While the measured difference of refractive index between the fundamental and second harmonic wavelengths follows the theoretical expectation for air in a wide spectral region, anomalous dispersion is observed when the second harmonic light lies in the absorption band of the dye. The sensitivity of the technique to small refractive index variations may prove...
Grup de recerca
CRnE - Centre de Recerca en Ciència i Enginyeria Multiescala de Barcelona
DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
GCM - Grup de Caracterització de Materials

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