Dual non-diffractive terahertz beam generators based on all-dielectric metasurface

• 作 者: Chunyu LIU Yanfeng LI Xi FENG Xixiang ZHANG Jiaguang HAN Weili ZHANG
• 机 构: Center for Terahertz Waves,Physical Science and Engineering Division,School of Electrical and Comput
• 出 处: 光电子学前沿:英文版
• 发表日期: 2021年2期
• 关键词: terahertzTHzwave all-dielectric metasurface Bessel beam abruptly autofocusing
• 基金项目: the National Key Research and Development Program of China(No.2017YFA0701004),the National Natural Science Foundation of China(Grant Nos.61935015,61875150,61605143,61735012,61722509,and 61871212),Tian

The applications of terahertz(THz)technology can be greatly extended using non-diffractive beams with unique field distributions and non-diffiactive transmission characteristics.Here,we design and experimentally demonstrate a set of dual non-diffractive T