Opto-Thermal Tuning Of Quasi-Bound States In The Continuum In GST Based Metasurfaces

We desing an asymmetric metasurface made of GST blocks and endowed with quasi-bound states in the continuum modes. Our theoretical modelling proves that, upon illumination with a short intense laser pulse, a partial transient crystallization of the structure can be triggered and bound states in the continuum can be dynamically quenched.