Exciton polaritons play a fundamental role in many different physical phenomena such as very low threshold lasers, Bose-Einstein condensation and superfluidity. The typical platforms for the polariton physics are semiconductor micro-cavities and waveguide structures. A recent theoretical work suggested the possibility of having exciton polaritons in a dielectric multilayer that can sustain a Bloch Surface Wave (BSW). In this contribution we report the experimental demonstration of strong coupling between the Frenkel exciton in the j-aggregates form of the TDBC(a) dye and a Bloch Surface Wave (BSW), supported by a SiO2/Ta2O5 multilayer. The periodic structure has been grown on the hypotenuse of a N-BK7 prism to excite the BSW in the Krestchmann configuration.
Bloch Surface Waves Polaritons
PIROTTA, STEFANO;DACARRO, GIACOMO;PATRINI, MADDALENA;GALLI, MATTEO;GUIZZETTI, GIORGIO;LISCIDINI, MARCO;BAJONI, DANIELE
2013-01-01
Abstract
Exciton polaritons play a fundamental role in many different physical phenomena such as very low threshold lasers, Bose-Einstein condensation and superfluidity. The typical platforms for the polariton physics are semiconductor micro-cavities and waveguide structures. A recent theoretical work suggested the possibility of having exciton polaritons in a dielectric multilayer that can sustain a Bloch Surface Wave (BSW). In this contribution we report the experimental demonstration of strong coupling between the Frenkel exciton in the j-aggregates form of the TDBC(a) dye and a Bloch Surface Wave (BSW), supported by a SiO2/Ta2O5 multilayer. The periodic structure has been grown on the hypotenuse of a N-BK7 prism to excite the BSW in the Krestchmann configuration.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
