Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides

Emerged terahertz transmission waveguides or fibers will enable novel terahertz systems and applications. High-quality output beam profiles, mechanical flexibility and reliability are among the most crucial and challenging characteristics of terahertz transmission waveguides. Here, we design and fab...

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Main Authors: Bo Chen, Wei Wei, Jingzhu Shao, Borui Xu, Huan Zhu, Gangyi Xu, Chongzhao Wu
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9652026/
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author Bo Chen
Wei Wei
Jingzhu Shao
Borui Xu
Huan Zhu
Gangyi Xu
Chongzhao Wu
author_facet Bo Chen
Wei Wei
Jingzhu Shao
Borui Xu
Huan Zhu
Gangyi Xu
Chongzhao Wu
author_sort Bo Chen
collection DOAJ
description Emerged terahertz transmission waveguides or fibers will enable novel terahertz systems and applications. High-quality output beam profiles, mechanical flexibility and reliability are among the most crucial and challenging characteristics of terahertz transmission waveguides. Here, we design and fabricate the flexible and stretchable transmission waveguides by 3D printing to guide radiation from terahertz (THz) quantum cascade lasers (QCLs) lasing at the frequency of 2.58 THz. Composite silver nanoparticles and polydimethylsiloxane are coated on the inner surface of the 3D-printed polycarbonate/rubber substrate tube. Output beam profiles from the transmission waveguides, which are captured by a room-temperature terahertz camera, demonstrate single-mode spatial intensity distribution. Transmission spectra are measured out from the waveguides and single-mode characteristics of THz QCLs are preserved from threshold to peak bias. More than 300 times of bending and force-strain curves are tested for the 3D-printed flexible terahertz transmission waveguides, the propagation losses exhibit no obvious change, demonstrating a superior mechanical endurance.
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spelling doaj.art-4f38e688ea2b461596ebf33710ce657d2022-12-22T00:12:07ZengIEEEIEEE Photonics Journal1943-06552022-01-011411710.1109/JPHOT.2021.31356599652026Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission WaveguidesBo Chen0https://orcid.org/0000-0001-7000-0231Wei Wei1Jingzhu Shao2Borui Xu3Huan Zhu4Gangyi Xu5Chongzhao Wu6https://orcid.org/0000-0002-5515-3325Center for Biophotonics, Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, ChinaCenter for Biophotonics, Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, ChinaCenter for Biophotonics, Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, ChinaCenter for Biophotonics, Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, ChinaKey Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, ChinaCenter for Biophotonics, Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, ChinaEmerged terahertz transmission waveguides or fibers will enable novel terahertz systems and applications. High-quality output beam profiles, mechanical flexibility and reliability are among the most crucial and challenging characteristics of terahertz transmission waveguides. Here, we design and fabricate the flexible and stretchable transmission waveguides by 3D printing to guide radiation from terahertz (THz) quantum cascade lasers (QCLs) lasing at the frequency of 2.58 THz. Composite silver nanoparticles and polydimethylsiloxane are coated on the inner surface of the 3D-printed polycarbonate/rubber substrate tube. Output beam profiles from the transmission waveguides, which are captured by a room-temperature terahertz camera, demonstrate single-mode spatial intensity distribution. Transmission spectra are measured out from the waveguides and single-mode characteristics of THz QCLs are preserved from threshold to peak bias. More than 300 times of bending and force-strain curves are tested for the 3D-printed flexible terahertz transmission waveguides, the propagation losses exhibit no obvious change, demonstrating a superior mechanical endurance.https://ieeexplore.ieee.org/document/9652026/Terahertz waveguideterahertz quantum cascade lasers3D-printing
spellingShingle Bo Chen
Wei Wei
Jingzhu Shao
Borui Xu
Huan Zhu
Gangyi Xu
Chongzhao Wu
Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides
IEEE Photonics Journal
Terahertz waveguide
terahertz quantum cascade lasers
3D-printing
title Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides
title_full Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides
title_fullStr Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides
title_full_unstemmed Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides
title_short Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides
title_sort spatially spectrally single mode and mechanically flexible 3d printed terahertz transmission waveguides
topic Terahertz waveguide
terahertz quantum cascade lasers
3D-printing
url https://ieeexplore.ieee.org/document/9652026/
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