@inproceedings{263b338afa9e41eebc76d12ff053fbf2,
title = "3-D Printed Circularly Polarized Terahertz Lens for Bessel Beam Generation",
abstract = "A novel circularly polarized (CP) Bessel beam launcher fed by a standard linearly polarized (LP) pyramidal horn at 300 GHz is proposed in this paper. The design adopts a bilayer structure, with the upper layer being a discrete dielectric lens antenna that transforms a quasi-Gaussian beam into a well confined and collimated pseudo-Bessel beam, and the lower layer being a uniform dielectric grating that converts diagonally incident LP waves into transmitted CP waves. In-house developed three-dimensional (3-D) printing techniques are adopted to fabricate the design for process simplification and cost minimization. Experimental results reveal that the proposed lens can realize right-hand circular polarization (RHCP) and generate a Bessel beam with constant spot size and constant axial intensity over a considerable range, all these achieved at 0.3 THz.",
keywords = "Bessel beam, Circular polarization (CP), Lens, Non-diffracting beam, Terahertz (THz), Three- dimensional (3-D) printing, Bessel beam, Circular polarization (CP), Lens, Non-diffracting beam, Terahertz (THz), Three- dimensional (3-D) printing, Bessel beam, Circular polarization (CP), Lens, Non-diffracting beam, Terahertz (THz), Three- dimensional (3-D) printing",
author = "Yeung, \{Yat Long\} and Jon Cheah and Geng-Bo Wu and Chan, \{Ka Fai\} and Chan, \{Chi Hou\}",
year = "2020",
month = aug,
doi = "10.1109/ICCEM47450.2020.9219471",
language = "English",
series = "Proceedings of the IEEE International Conference on Computational Electromagnetics, ICCEM ",
publisher = "IEEE",
pages = "19--20",
editor = "Chao-Fu WANG and Zhongxiang SHEN and En-Xiao LIU and TAN, \{Eng Leong\}",
booktitle = "Proceedings of the 2020 IEEE International Conference on Computational Electromagnetics (ICCEM 2020)",
address = "United States",
note = "6th IEEE International Conference on Computational Electromagnetics (ICCEM 2020) ; Conference date: 24-08-2020 Through 26-08-2020",
}