From Event: SPIE Optics + Optoelectronics, 2019
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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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 (Presented at SPIE Optics + Optoelectronics: April 02, 2019; Published: 13 May 2019); https://doi.org/10.1117/12.2524765.