Fei-Long YU, Jin CHEN, Zeng-Yue ZHAO, Guan-Hai LI, Xiao-Shuang CHEN, Wei LU. A forward calculation method to quickly realize the achromatic metasurface for arbitrary polarization control[J]. Journal of Infrared and Millimeter Waves, 2022, 41(4): 792
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- Journal of Infrared and Millimeter Waves
- Vol. 41, Issue 4, 792 (2022)
Fig. 1. Inverse derivation of Jones matrix for elliptic polarization transformation
Fig. 2. (a)The phase and phase difference,(b)the parameter requirements of birefringence units under different rotation angles
Fig. 3. Schematic diagram of the design of an elliptic polarization achromatic metalens(a-b)phase-frequency response curves corresponding to different rotation angles and generalized PB phases,(c)distribution map of filtered cells for array design,(d)group delay distribution of elements in the designed array
Fig. 4. The results of diffraction calculation of achromatic focusing at different wavelengths cover 3 350 nm to 4 350 nm
Fig. 5. The FDTD simulation results of the achromatic focusing at different wavelengths cover from 3 350 nm to 4 350 nm(a)The profile of the X-Z light field at each wavelength,(b)position of focal point,(c)the focusing efficiency
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