title: Coherent Control of Optical Spin-to-Orbital Angular Momentum Conversion in Metasurface.
abstract: Efficient control over the conversion of optical angular momentum from spin to orbital form in a metasurface system is achieved. Under coherent symmetric incidence, it can support nearly 100% conversion and unitary output, while it can support 50% conversion with 25% transmittance under one beam incidence.
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, The Key Laboratory of Optoelectronics Information and Technology, Tianjin University, Tianjin, 300072, P. R. China.
authors.forename: Huifang
authors.initials: H
authors.lastname: Zhang
authors.affiliation: College of Physics and Materials Science, Tianjin Normal University, Tianjin, 300387, P. R. China.
authors.forename: Ming
authors.initials: M
authors.lastname: Kang
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, The Key Laboratory of Optoelectronics Information and Technology, Tianjin University, Tianjin, 300072, P. R. China.
authors.forename: Xueqian
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, 210096, P. R. China.
authors.forename: Wengao
authors.initials: W
authors.lastname: Guo
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, 210096, P. R. China.
authors.forename: Changgui
authors.initials: C
authors.lastname: Lv
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, The Key Laboratory of Optoelectronics Information and Technology, Tianjin University, Tianjin, 300072, P. R. China.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Li
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, The Key Laboratory of Optoelectronics Information and Technology, Tianjin University, Tianjin, 300072, P. R. China.|School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK, 74078, USA.
authors.forename: Weili
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, The Key Laboratory of Optoelectronics Information and Technology, Tianjin University, Tianjin, 300072, P. R. China.
authors.forename: Jiaguang
authors.initials: J
authors.lastname: Han
keywords: Pancharatnam-Berry phase optical element; coherent control; phase discontinuities; terahertz