Goos-H?nchen shift based on α-MoO3 metasurface structures
Presents the design of a hyperbolic metasurface structure using the central beam principle and finite element simulation software.The aim of this design is to achieve precise control over the Goos-Hänchen shift(GH shift)of the reflected beam while maintaining a high level of reflectivity.The simulation results demonstrate that modulation of GH shift with high reflectivity can be achieved by changing parameters such as the incident angle of the incident light and the thickness of α-MoO3.Furthermore,investigates the influence of TE or TM wave incidence and crystal axis orientation on GH shift.Notably,significant GH shift peaks occur during TE wave incidence,and the position of GH shift peaks can be adjusted by altering the crystal axis orientation.The designed metasurface structures have great significance in exploring novel micro-and nano-optical devices.
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