Abstract
The next generation of the advanced optic devices points toward a dynamic control of the wavefront, which will have a ground-breaking impact on optical manipulation technologies. In this paper, a novel tunable optic transmission structure has been designed by epsilon-near-zero media filled with multiple nested dielectric dopants. In this structure, the multiple nested dielectric dopants which consist of a cylindrical air cavity and a dielectric cylinder nested in the air cavity is embodied in ENZ media. Under the condition of varying parameters, the optical control ability of the proposed structure is analyzed comprehensively and verified by EM full-wave simulations. The analysis results show the proposed structure is able to manipulate properties of transmission wave in real-time, such as phase and magnitude by replacing or moving the internal dielectric cylinder nested in the air cavity. As an example, the proposed structure is realized by rectangle wave guide at microwave frequency. This work provides a novel way for the development optical (electromagnetic) wavefront tunable device.
Published Version
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