Abstract-Nearly perfect polarization rotation in optical range based on all-dielectric metamaterials

Xuefeng Li, Rui Feng, Weiqiang Ding

http://iopscience.iop.org/article/10.1088/2040-8986/aadb51

Although has been extensively investigated using metamaterials in microwave and Terahertz region, the polarization rotation in optical spectrum with extremely high efficiency and linear tunability for angle of rotation is still challenging. Here, we report a polarization rotator in near infrared spectrum using all-dielectric metamaterials with nearly perfect performance. For linear polarization incidences with arbitrary polarization angles, the transmittances are larger than 0.98 and the linear polarizations are still maintained except for a uniform angle of rotation $82^{\circ}$. Thus, with the assistance of a half wave plate, the output polarization angle can be linearly tuned from 0 to $2\pi$. The physical origins are analyzed systematically using numerical simulation method and Jones Calculus. These excellent features make our scheme potential for all-dielectric integrated polarization rotator related applications at optical range.