We exploit the excitation of electromagnetic surface waves on high-quality dielectric multilayers to measure the very low extinction coefficient of the structures, with a resolution down to 4.10(-7) and in a simple optical configuration. The effect of exposition to a rhodamine 6G solution in water and ethanol is also reported, including dye adsorption in the layers and bleaching upon resonant excitation. (C) 2013 Optical Society of America
Probing losses of dielectric multilayers by means of Bloch surface waves / Michelotti, Francesco; Sinibaldi, Alberto; Peter, Munzert; Norbert, Danz; Emiliano, Descrovi. - In: OPTICS LETTERS. - ISSN 0146-9592. - STAMPA. - 38:5(2013), pp. 616-618. [10.1364/ol.38.000616]
Probing losses of dielectric multilayers by means of Bloch surface waves
MICHELOTTI, Francesco;SINIBALDI, ALBERTO;
2013
Abstract
We exploit the excitation of electromagnetic surface waves on high-quality dielectric multilayers to measure the very low extinction coefficient of the structures, with a resolution down to 4.10(-7) and in a simple optical configuration. The effect of exposition to a rhodamine 6G solution in water and ethanol is also reported, including dye adsorption in the layers and bleaching upon resonant excitation. (C) 2013 Optical Society of AmericaI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
