title: Manipulating one-way space wave and its refraction by time-reversal and parity symmetry breaking.
abstract: One-way transmission and negative refraction are the exotic wave properties founded in photonic crystals which attract a great attention due to their promising applications in photonic devices. How to integrate such two phenomena in one material or device is interesting and valuable. In this work, we theoretically and experimentally demonstrate that one-way electromagnetic space wave can be realized by means of two-dimensional magnetic photonic crystals. Simultaneously breaking the time-reversal and parity symmetries of the magnetic photonic crystals designed, we observe oblique incident space wave propagating one-way in the magnetic photonic crystals with positive or negative refraction occurring at interfaces, which can be manipulated upon the incident angle and operating frequency. Our work may offer a potential platform to realize some exotic photoelectronic and microwave devices such as one-way imaging and one-way cloaking.
authors.affiliation: School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Yin
authors.initials: Y
authors.lastname: Poo
authors.affiliation: National Laboratory of Solid State Microstructures &Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China.|Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: He
authors.affiliation: School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Xiao
authors.affiliation: National Laboratory of Solid State Microstructures &Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China.|Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Lu
authors.affiliation: School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Rui-Xin
authors.initials: RX
authors.lastname: Wu
authors.affiliation: National Laboratory of Solid State Microstructures &Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China.|Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
authors.forename: Yan-Feng
authors.initials: YF
authors.lastname: Chen