Generation of Photonic Hooks from Patchy Microcylinders
Fen Tang,
Qingqing Shang,
Songlin Yang,
Ting Wang,
Sorin Melinte,
Chao Zuo,
Ran Ye
Affiliations
Fen Tang
School of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, China
Qingqing Shang
Key Laboratory for Opto-Electronic Technology of Jiangsu Province, Nanjing Normal University, Nanjing 210023, China
Songlin Yang
Advanced Photonics Center, Southeast University, Nanjing 210096, China
Ting Wang
College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
Sorin Melinte
Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
Chao Zuo
Smart Computational Imaging Laboratory (SCILab), School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Ran Ye
School of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, China
The photonic hook (PH) is a new type of curved light beam, which has promising applications in various fields such as nanoparticle manipulation, super-resolution imaging, and so forth. Herein, we proposed a new approach of utilizing patchy microcylinders for the generation of PHs. Numerical simulation based on the finite-difference time-domain method was used to investigate the field distribution characteristics of the PHs. By rotating the patchy microcylinder, PHs with different curvatures can be effectively generated, and the PH with a bending angle of 28.4∘ and a full-width-half-maximum of 0.36 λ can be obtained from 1 μm-diameter patchy microcylinders.
