journal article·2019-01-22

Complex Inverse Design of Meta-optics by Segmented Hierarchical Evolutionary Algorithm

Zhongwei Jin, Shengtao Mei, Shuqing Chen, Ying Li, Chen Zhang, Yanliang He, Xia Yu, Changyuan Yu, Joel K. W. Yang, Boris Luk’yanchuk, Shumin Xiao, Cheng-Wei Qiu

ACS Nano· Volume 13· Issue 1
Publisher page

Abstract

With the recent burgeoning advances in nano-optics, ultracompact, miniaturized photonic devices with high-quality and spectacular functionalities are highly desired. Such devices' design paradigms often call for the solution of a complex inverse nonanalytical/semianalytical problem. However, currently reported strategies dealing with amplitude-controlled meta-optics devices achieved limited functionalities mainly due to restricted search space and demanding computational schemes. Here, we established a segmented hierarchical evolutionary algorithm, aiming to solve large-pixelated, complex inverse meta-optics design and fully demonstrate the targeted performance. This paradigm allows significantly extended search space at a rapid converging speed. As typical complex proof-of-concept examples, large-pixelated meta-holograms are chosen to demonstrate the validity of our design paradigm. An improved fitness function is proposed to reinforce the performance balance among image pixels, so that the image quality is improved and computing speed is further accelerated. Broadband and full-color meta-holograms with high image fidelities using binary amplitude control are demonstrated experimentally. Our work may find important applications in the advanced design of future nanoscale high-quality optical devices.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Metamaterials and Metasurfaces Applications · Photonic and Optical Devices · Photonic Crystals and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583

International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Nanhai Avenue 3688, Shenzhen, Guangdong 518060, People’s Republic of China

State Key Laboratory on Tunable Laser Technology, Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, Guangdong 518055, People’s Republic of China

Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372

Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371

Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia

SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, Shenzhen University, Shenzhen 518060, People’s Republic of China

Funding

National Research Foundation Singapore · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province · Shenzhen Fundamental Research Project · Guangdong Province

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