Multi-Channel Polarization Manipulation Based on All-Dielectric Metasurface

Abstract

A metasurface is a planar structure that can be utilized to manipulate the amplitude, phase, and polarization of light on a subwavelength scale. Although a variety of functional optical devices based on metasurface have been proposed, the simultaneous transmission of different types of polarized waves has rarely been reported. The transmission of polarized waves with different types plays an important role in the fields of wavelength division multiplexing, quantum cryptography, and quantum computing. The simulated results in this work demonstrate that the independent manipulation of transmitted waves can be realized by the designed all-dielectric metasurface, and different types of polarized waves can be simultaneously generated. In addition, different optical responses under orthogonal circularly polarized wave incidences can be generated by this metasurface. The proposed method provides potential applications for the development of integrated optical quantum information transmission and the design of integrated optical systems on a chip.

Keywords

• independent manipulation
• all-dielectric metasurface
• spin decoupling
• polarization conversion