Restoration of diffracted far field at the output of circular diffraction waveplate

2nd International Conference on Mathematical Modeling in Physical Sciences 2013

物理学;数学

Hovhannisyan, D.^1 ; Tabiryan, N.^2 ; Margaryan, H.^1 ; Abrahamyan, V.^1 ; Hakobyan, N.^1

Yerevan State University, Radiophysics Department, Yerevan, Armenia^1

Beam Engineering for Advanced Measurements Co., FL, United States^2

关键词: Far field;    FDTD simulations;    Finite difference time domain technique;    Near fields;    Periodic media;    Polarization state;    Waveplates;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/490/1/012177/pdf
DOI  :  10.1088/1742-6596/490/1/012177

来源: IOP

【 摘 要 】

The light propagation in an anisotropic periodic media, such us circular diffraction waveplate (CDW) by a finite-difference time-domain (FDTD) technique is studied. The FDTD numerical simulation and the subsequent Fourier transform of the diffracted electric near field was been used for study of ability of CDW to diffract a laser beam and simultaneously convert polarization state. The FDTD simulation results used to restore the diffracted electric far field at the CDW output. an abstract.