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Metallic stereostructured layer: An approach for broadband polarization state manipulation

2014; American Institute of Physics; Volume: 105; Issue: 20 Linguagem: Inglês

10.1063/1.4902405

1520-8842

Xiang Xiong, Yuan-Sheng Hu, Shang‐Chi Jiang, Yuhui Hu, Ren‐Hao Fan, Guobin Ma, Da‐Jun Shu, Ru‐Wen Peng, Mu Wang,

Photonic Crystals and Applications

In this letter, we report a full-metallic broadband wave plate assembled by standing metallic L-shaped stereostructures (LSSs). We show that with an array of LSSs, high polarization conversion ratio is achieved within a broad frequency band. Moreover, by rotating the orientation of the array of LSSs, the electric components of the reflection beam in two orthogonal directions and their phase difference can be independently tuned. In this way, all the polarization states on the Poincaré sphere can be realized. As examples, the functionalities of a quarter wave plate and a half wave plate are experimentally demonstrated with both reflection spectra and focal-plane-array imaging. Our designing provides a unique approach in realizing the broadband wave plate to manipulate the polarization state of light.