Encoding 2D Information with Orbital Angular Momentum of Light and Application for Multi-View Displays

利用光的轨道角动量编码二维信息及其在多视图显示器中的应用

时间：2018 年 10 月 23 日 16：00 – 17：30

地 点： 南五楼 612 学术报告厅

报告人： Prof. Daping Chu, 剑桥大学

邀请人： 张新亮 教授

报告摘要：

光的轨道角动量（OAM）具有无限的正交状态集，并且可用于增强数据传输的信道容量。到目前为止，相关工作主要集中在使用轨道角动量模式来编码/解码和复用基于点的轴上信号，以获得最大数据信道数和容量。研究了使用OAM创建多视显示器的可行性。在被分类到不同的视图方向之前，使用OAM波束阵列对多视图图像信息进行编码。随后，针对三视图显示器研究了使用不同OAM模式的二维信息的编码和解码，以示出可以选择性地恢复任何OAM编码状态。实验演示表明，OAM可能成为未来多视图显示系统的替代平台。

Orbital angular momentum (OAM) of light has an unbounded set of orthogonal states and can be used to enhance the channel capacity of data transmission. So far the related works have been focused on using orbital angular momentum modes to encode/decode and multiplex point-based on-axis signals for maximum data channel numbers and capacity. The viability of using OAM to create multiscopic displays was explored. Multi-view image information is encoded using an OAM beam array before being sorted into different view directions. Subsequently the encoding and decoding of two-dimensional information using different OAM modes was investigated for a three-view display to show any OAM coded state can be recovered selectively. The experimental demonstrations suggest that OAM could potentially serve as an alternative platform for future multi-view display systems.

报告人介绍：

Daping Chu教授是剑桥大学CAPE（先进光子学与电子学中心）主席和CPDS（光子器件与传感器中心）主任。他是英国物理学会会士和工程技术学会会士，特聘物理学家和特聘工程师。目前的研究兴趣包括用于未来显示器和光通信的空间光调制和仅相位全息术，增强现实（AR）平视显示器（HUD）和头戴式显示器（HMD），高亮度透射反射显示器，层压电活性箔 用于遮阳和智能外观，可印刷/可穿戴电子设备，用于GHz / THz应用的高频可调电介质，以及低成本制造工艺的开发。

Professor Daping Chu is Director of CAPE (Centre for Advanced Photonics and Electronics) and Director of CPDS (Centre for Photonic Devices and Sensors) at University of Cambridge. He is a Fellow of Institute of Physics, UK, and of the Institution of Engineering and Technology, a Chartered Physicist and a Chartered Engineer. Current research interests include space light modulation and phase-only holography for future displays and optical communications, augmented reality (AR) head-up displays (HUDs) and head-mounted displays (HMDs), high brightness transreflective displays, laminated electro-active foils for solar shading and smart facade, printable/wearable electronics, high frequency tuneable dielectrics for GHz/THz applications, and development of low costs manufacturing processes.

华中科技大学光学与电子信息学院 承办

2018. 10. 22