Fig. 4From: Ultracompact Nanophotonics: Light Emission and Manipulation with MetasurfacesThermally reconfigurable and tunable metasurfaces with GST a Reversible metasurface with nanoantennas controlled by femtosecond laser pulses [72], b Switchable perfect absorber meta-device with nanoantennas stacked above phase change material [73], c Cylindrical bifocal metalens for amorphous and crystalline GST [74], d Structures of a nanograting metasurface for dielectric-plasmonic transitions [75], and e Electric dipole resonance and an anapole excitation in a GST sphere introduced by an intermediate phase transition [76]Back to article page