Bendable, low-loss Topas fibers for the terahertz frequency range
Kristian Nielsen,Henrik Koblitz Rasmussen,Aurèle J. L. Adam,Paul C. M. Planken,Ole Bang,Peter Uhd Jepsen +5 more
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TLDR
Near-field, frequency-resolved characterization with high spatial resolution of the amplitude and phase of the modal structure proves that the fiber is single-moded over a wide frequency range, and the authors see the onset of higher-order modes at high frequencies as well as indication of microporous guiding at low frequencies and high porosity of the fiber.Abstract:
We report on a new class of polymer photonic crystal fibers for low-loss guidance of THz radiation. The use of the cyclic olefin copolymer Topas, in combination with advanced fabrication technology, results in bendable THz fibers with unprecedented low loss and low material dispersion in the THz regime.We demonstrate experimentally how the dispersion may be engineered by fabricating both high- and low-dispersion fibers with zero-dispersion frequency in the regime 0.5-0.6 THz. Near-field, frequencyresolved characterization with high spatial resolution of the amplitude and phase of the modal structure proves that the fiber is single-moded over a wide frequency range, and we see the onset of higher-order modes at high frequencies as well as indication of microporous guiding at low frequencies and high porosity of the fiber. Transmission spectroscopy demonstrates low-loss propagation (< 0.1 dB/cm loss at 0.6 THz) over a wide frequency range.read more
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Journal ArticleDOI
Terahertz spectroscopy and imaging – Modern techniques and applications
TL;DR: The terahertz time-domain spectroscopy (THz-TDS) as discussed by the authors is a new spectroscopic technique based on coherent and time-resolved detection of the electric field of ultrashort radiation bursts.
Journal ArticleDOI
The 2017 terahertz science and technology roadmap
Sukhdeep Dhillon,Miriam S. Vitiello,Edmund H. Linfield,Alexander Giles Davies,Matthias C. Hoffmann,John H. Booske,Claudio Paoloni,Michael Gensch,Peter Weightman,Gwyn P. Williams,Enrique Castro-Camus,David R. S. Cumming,F. Simoens,Ivonne Escorcia-Carranza,James Grant,Stepan Lucyszyn,Makoto Kuwata-Gonokami,Kuniaki Konishi,Martin Koch,Charles A. Schmuttenmaer,Tyler L. Cocker,Rupert Huber,Andrea Markelz,Z. D. Taylor,Vincent P. Wallace,J. Axel Zeitler,Juraj Sibik,Timothy M. Korter,Brian N. Ellison,Suzanne Rea,Paul F. Goldsmith,Ken B. Cooper,Roger Appleby,D. Pardo,Peter G. Huggard,Viktor Krozer,Haymen Shams,Martyn J. Fice,Cyril C. Renaud,Alwyn J. Seeds,Andreas Stohr,Mira Naftaly,Nick M. Ridler,Roland Clarke,John Cunningham,Michael B. Johnston +45 more
TL;DR: The 2017 roadmap of terahertz frequency electromagnetic radiation (100 GHz-30 THz) as discussed by the authors provides a snapshot of the present state of THz science and technology in 2017, and provides an opinion on the challenges and opportunities that the future holds.
The 2016 terahertz science and technology roadmap
S. S. Dhillon,Vitiello,Edmund H. Linfield,A. G. Davies,Matthias C. Hoffmann,John H. Booske,Claudio Paoloni,M. Gench,Peter Weightman,Gwyn P. Williams,Enrique Castro-Camus,David R. S. Cumming,F. Simoens,I. Escorcia Carranza,John Grant,Stepan Lucyszyn,Makoto Kuwata-Gonokam,Kuniaki Konishi,Martin Koch,Charles A. Schmuttenmaer,Tyler L. Cocker,Rupert Huber,Andrea Markelz,Z. D. Taylor,Vincent P. Wallace,J. Axel Zeitler,Juraj Sibik,Timothy M. Korter,Brian N. Ellison,Suzanne Rea,Paul F. Goldsmith,Ken B. Cooper,Roger Appleby,D. Pardo,Peter G. Huggard,Krozer,Haymen Shams,Martyn J. Fice,Cyril C. Renaud,Alwyn J. Seeds,Andreas Stohr,Mira Naftaly,Nick M. Ridler,Roland Clarke,John Cunningham,Michael B. Johnston +45 more
TL;DR: The 2017 roadmap of terahertz frequency electromagnetic radiation (100 GHz-30 THz) as mentioned in this paper provides a snapshot of the present state of THz science and technology in 2017, and provides an opinion on the challenges and opportunities that the future holds.
Journal ArticleDOI
Broadband terahertz characterization of the refractive index and absorption of some important polymeric and organic electro-optic materials
Paul D. Cunningham,Nestor N. Valdes,Felipe A. Vallejo,L. Michael Hayden,Brent M. Polishak,Xing-Hua Zhou,Jingdong Luo,Alex K.-Y. Jen,Jarrod Williams,Robert J. Twieg +9 more
TL;DR: In this paper, the authors report broad bandwidth, 0.1-10 THz time-domain spectroscopy of linear and electro-optic polymers for broadband THz applications.
Journal ArticleDOI
Terahertz dielectric waveguides
TL;DR: Several classes of nonplanar metallic and dielectric waveguides have been proposed in the literature for guidance of terahertz (THz) or T-ray radiation.
References
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Cutting-edge terahertz technology
TL;DR: An overview of the status of the terahertz technology, its uses and its future prospects are presented in this article, with a focus on the use of the waveband in a wide range of applications.
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Journal ArticleDOI
Metal wires for terahertz wave guiding
Kanglin Wang,Daniel M. Mittleman +1 more
TL;DR: It is shown how a simple waveguide, namely a bare metal wire, can be used to transport terahertz pulses with virtually no dispersion, low attenuation, and with remarkable structural simplicity.
Journal ArticleDOI
Generation and detection of terahertz pulses from biased semiconductor antennas
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