Seminario

Optical and mechanical wave manipulation in dielectric metasurfaces

1 dicembre 2022
Orario di inizio 
14:30
Polo Ferrari 1 - Via Sommarive 5, Povo (Trento)
Room A204
Organizzato da: 
Department of Physics
Destinatari: 
Comunità universitaria
Partecipazione: 
Ingresso libero
Referente: 
Prof. Lorenzo Pavesi
Contatti: 
Camilla Kandamulla Arachchige
+39 0461 283172

Speaker

Dr. Alessandro Pitanti
Lab. NEST, CNR – NANO & Scuola Normale Superiore, Pisa, Italy
Paul-Drude-Institut fur Festkörpelektronik, Berlin, Germany

Abstract

Artificial structured materials – metamaterials – are the quintessential tool for controlling and manipulating all degrees of freedom of either optical or mechanical waves. In this talk I will show the application of the metamaterial concept on a dielectric optomechanical membrane, where light and vibration dynamics are coupled and strongly intertwined.
The optomechanical metasurface unveils interesting features linked to the device symmetry, including mechanical-based polarization modulation and polarimetry, anisotropy and anomalous refraction of mechanical waves and the mutual coupling of fully optomechanical Bloch modes.

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