We present a direct evidence of Bloch surface waves (BSWs) waveguiding on ultrathin polymeric ridges, supported by near-field measurements. It is demonstrated that near-infrared BSWs sustained by a silicon-based multilayer can be locally coupled and guided through dielectric ridges of nanometric thickness with low propagation losses. Using a conventional prism-based configuration, we demonstrate a wavelength-selective BSW coupling inside and outside the ridge. Such a result can open interesting opportunities in surface wave-mediated sensing applications, where light could be selectively coupled in specific regions defined by nanometric reliefs.
Guided Bloch Surface Waves on Ultrathin Polymeric Ridges / Emiliano, D., Tristan, S., Marzia, Q., Daniele, B., Dominici, L., Michelotti, F., Hans Peter, H., O. J. F., M., Olivier J. F., M., Fabrizio, G.. - In: NANO LETTERS. - ISSN 1530-6984. - STAMPA. - 10:6(2010), pp. 2087-2091. (, 36th International Conference on Micro and Nano Engineering (MNE2010) Genova (I) September 19th-22nd (2010)) [10.1021/nl100481q].
Guided Bloch Surface Waves on Ultrathin Polymeric Ridges
DOMINICI, Lorenzo;MICHELOTTI, Francesco;
2010
Abstract
We present a direct evidence of Bloch surface waves (BSWs) waveguiding on ultrathin polymeric ridges, supported by near-field measurements. It is demonstrated that near-infrared BSWs sustained by a silicon-based multilayer can be locally coupled and guided through dielectric ridges of nanometric thickness with low propagation losses. Using a conventional prism-based configuration, we demonstrate a wavelength-selective BSW coupling inside and outside the ridge. Such a result can open interesting opportunities in surface wave-mediated sensing applications, where light could be selectively coupled in specific regions defined by nanometric reliefs.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
