title: All-dielectric metasurface circular dichroism waveplate.
abstract: We propose and experimentally demonstrate a high efficient circularly polarizing dichroism waveplate (CPDW) using a Si-based all-dielectric 2Dchiral metasurface. We demonstrate that the CPDW exhibits a unique dichroism in that it functions as a transmissive quarter waveplate for one of either left-or right-handed circularly polarized incident lightand a reflective mirror for the opposite polarization. The circular polarization dichroism (CPD = IRCP- ILCP) in transmission at wavelength ~1.5 μm reaches 97% and the extinction ratio (ER = IRCP/ILCP) is as high as 345:1. Experimental fabrications and measurements of the proposed all-dielectric metasurface are implemented and found to be in excellent agreement with the simulations. The proposed all-dielectric chiral metasurface is of advantages of high-dichroism, easy-fabrication and standard semiconductor fabrication techniques compatible, which could lead to enhanced security in fiber and free-space communications, as well as imaging and sensing applications for circularly polarized light with a highly integrated photonic platform.
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Jingpei
authors.initials: J
authors.lastname: Hu
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Xiaonan
authors.initials: X
authors.lastname: Zhao
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Lin
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Aijiao
authors.initials: A
authors.lastname: Zhu
authors.affiliation: School of Electronics and Information, Nantong University, Nantong 226019, Jiangsu, China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Zhu
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Peiji
authors.initials: P
authors.lastname: Guo
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Cao
authors.affiliation: College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.|Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province &Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
authors.forename: Chinhua
authors.initials: C
authors.lastname: Wang