(Peer-Reviewed) Photonic orbital angular momentum with controllable orientation
Chenhao Wan 万辰皓 ¹ ², Jian Chen 陈建 ¹, Andy Chong ³ ⁴, Qiwen Zhan 詹其文 ¹
¹ School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China 上海理工大学 光电信息与计算机工程学院
² School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China 华中科技大学 光学与电子信息学院
³ Department of Electro-Optics and Photonics, University of Dayton, 300 College Park, Dayton, OH 45469, USA
⁴ Department of Physics, University of Dayton, 300 College Park, Dayton, OH 45469, USA
National Science Review, 2021-08-16
Abstract
Vortices are whirling disturbances commonly found in nature ranging from tremendously small scales in Bose-Einstein condensates to cosmologically colossal scales in spiral galaxies. An optical vortex, generally associated with a spiral phase, can carry orbital angular momentum (OAM). The optical OAM can either be in the longitudinal direction if the spiral phase twists in the spatial domain or in the transverse direction if the phase rotates in the spatiotemporal domain.
In this article, we demonstrate the intersection of spatiotemporal vortices and spatial vortices in a wave packet. As a result of this intersection, the wave packet hosts a tilted OAM that provides an additional degree of freedom to the applications that harness the OAM of photons.
Electrically switchable bright-field and interference-synthesized edge-enhanced imaging with a polarization-multiplexed metalens
Xiaotong Li, Junhwa Seong, Yeseul Kim, Kwang-Suk Oh, Shiqi Hu, Le Dai, Harit Keawmuang, Beomha Yang, Minseok Choi, Youngsun Jeon, Cherry Park, Weiyan Li, Tianxu Jia, Han Zhu, Xiaodong Cai, Qi Zheng, Jinhui Shi, Young-Ki Kim, Yuchuan Shao, Trevon Badloe, Junsuk Rho
Opto-Electronic Science
2026-09-20
3D-printed copper water cooling system assisted fabrication of 10.6-μm high-power CO₂ laser resistance reflectors
Hongfei Jiao, Binbin Jiang, Xinshang Niu, Yifan Wang, Dongdong Li, Jun Yu, Xiaochuan Ji, Jingjing Xia, Jinlong Zhang, Xinbin Cheng, Zhanshan Wang
Opto-Electronic Advances
2026-09-15
Ultrafast all-optical modulation of wide-bandwidth pulses enabled by silicon-metasurfaces
Kaloyan Georgiev, Khosro Zangeneh Kamali, Anton A. Trifonov, Giulia Crotti, Lyuben Petrov, Stefan Georgiev, Hristo Iliev, Lei Xu, Unai Arregui Leon, Mohsen Rahmani, Giuseppe Della Valle, Ivan Buchvarov, Dragomir Neshev
Opto-Electronic Advances
2026-09-15
Physics-informed neural fields enable blind aberration correction for partially coherent quantitative phase imaging
Shun Zhou, Xingyu Huang, Linpeng Lu, Habib Ullah, Kaiyu Du, Maciej Trusiak, Malgorzata Kujawinska, Yuzhen Zhang, Yao Fan, Qian Chen, Qinrong Zhang, Chao Zuo
Opto-Electronic Science
2026-08-26
