Quantum spin Hall effect in bound states in continuum

Gianluigi Zito; Silvia Romano; Stefano Cabrini; Giuseppe Calafiore; Anna Chiara De Luca; Erika Penzo; Vito Mocella

doi:10.1117/12.2524765

13 May 2019 Quantum spin Hall effect in bound states in continuum

Gianluigi Zito, Silvia Romano, Stefano Cabrini, Giuseppe Calafiore, Anna Chiara De Luca, Erika Penzo, Vito Mocella

Proceedings Volume 11026, Nonlinear Optics and Applications XI; 110260S (2019) https://doi.org/10.1117/12.2524765
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

Moving the polarization of the incident wave along a meridian of the Poincaré sphere, experimentally we show that the coupling with the fundamental Bloch’s surface waves of the mode, provide a spatially coherent, macroscopic spinmomentum locked propagation along the symmetry axes of the PhCM. This novel mechanism of light-spin manipulation enables a versatile implementation of spin-optical structures that may pave the way to novel strategies for light spin technology and photonic multiplatform implementations.

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Citation Download Citation

Gianluigi Zito, Silvia Romano, Stefano Cabrini, Giuseppe Calafiore, Anna Chiara De Luca, Erika Penzo, and Vito Mocella "Quantum spin Hall effect in bound states in continuum", Proc. SPIE 11026, Nonlinear Optics and Applications XI, 110260S (13 May 2019); https://doi.org/10.1117/12.2524765

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