Liquid crystal terahertz modulator with plasmon-induced transparency metamaterial.
TLDR
The incident angle tuning effect on PIT spectra shows that the large modulation depth and low insertion loss can remain over a wide range of working angles and make this modulator promising in advanced terahertz communication.Abstract:
An electrically tunable terahertz (THz) modulator with large modulation depth and low insertion loss is performed with liquid crystal (LC) metamaterial. The modulation depth beyond 90% and insertion loss below 0.5 dB are achievable at normal incidence by exploiting plasmon-induced transparency (PIT) effect. The PIT spectra can be manipulated by actively controlling the interference between dipole mode and nonlocal surface-Bloch mode with LC. The incident angle tuning effect on PIT spectra shows that the large modulation depth and low insertion loss can remain over a wide range of working angles. The superior property and simplicity of design make this modulator promising in advanced terahertz communication.read more
Citations
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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
Recent Progress in Active Optical Metasurfaces
TL;DR: A detailed review of the recent advances in active optical metasurfaces is provided in this article, including discussions reviewing a variety of active materials and approaches that enable faster, stronger and more accurate tuning.
Journal ArticleDOI
Dynamic Terahertz Plasmonics Enabled by Phase‐Change Materials
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Terahertz Band Communication: An Old Problem Revisited and Research Directions for the Next Decade
TL;DR: In this paper , the authors look back to the last decade and revisiting the old problems and pointing out what has been achieved in the research community so far, by covering diverse topics ranging from devices, channel behavior, communication and networking, to physical testbeds and demonstration systems.
References
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Journal ArticleDOI
The Fano resonance in plasmonic nanostructures and metamaterials
Boris Luk'yanchuk,Nikolay I. Zheludev,Stefan A. Maier,Naomi J. Halas,Peter Nordlander,Harald Giessen,Chong Tow Chong,Chong Tow Chong +7 more
TL;DR: The steep dispersion of the Fano resonance profile promises applications in sensors, lasing, switching, and nonlinear and slow-light devices.
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.
Journal ArticleDOI
Active control of electromagnetically induced transparency analogue in terahertz metamaterials
Jianqiang Gu,Ranjan Singh,Xiaojun Liu,Xueqian Zhang,Yingfang Ma,Shuang Zhang,Stefan A. Maier,Zhen Tian,Abul Kalam Azad,Hou-Tong Chen,Antoinette J. Taylor,Jiaguang Han,Weili Zhang,Weili Zhang +13 more
TL;DR: This work presents active optical control of metamaterial-induced transparency through active tuning of the dark mode, and opens up the possibility for designing novel chip-scale ultrafast devices that would find utility in optical buffering and terahertz active filtering.
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
Liquid Crystal Tunable Metamaterial Absorber
TL;DR: The results show that fundamental light interactions of surfaces can be dynamically controlled by all-electronic means and provide a path forward for realization of novel applications.