Fig. 2 | Light: Science & Applications

Fig. 2

From: Ultrafast switching of a metasurface quasi-bound state in the continuum via transient optical symmetry breaking

Fig. 2

Broken optical symmetry. a Scheme of permittivity modulation. b Far-field polarization (in transmission) in the broken symmetry case. Red (blue) point represents a circularly polarized resonance with positive (negative) helicity, corresponding to a vortex centre for the polarization with topological charge −1/2. c Transmission of the metasurface in static (solid trace) versus perturbed conditions (corresponding to broken symmetry, dashed trace). The spectral resolution of the simulations is 0.1 nm

Back to article page