- >> Information Communication Platforms Division
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Ultra-Broadband Signal Processing
Researcher
- [ Professor ]
Taiichi Otsuji - [ Associate Professor ]
Akira Satou - [ Associate Professor ]
Tsung Tse Lin - [ Research Fellow ]
Chao Tang - [ Research Fellow ]
Victor Ryzhii
Group Web Site
https://www.otsuji.riec.tohoku.ac.jp/english/index_en.php
Research Activities
Terahertz (sub-millimeter) coherent electromagnetic waves are expected to explore the potential application fields of future information and communications technologies. We are developing novel, ultra-broadband integrated signal-processing devices/systems operating in the millimeter and terahertz frequency regime.
Ultra-broadband Device Physics (Assoc. Prof. Satou)
Research topics
- 2D Plasmons in Graphene and Compound-Semiconductor Heterostructures and Their Applications to Terahertz Sources and Detectors.
- Terahertz Optical Gain in Graphene and Its Application to Terahertz Lasers.
- Photonics-Electronics Convergence Carrier Converters.
For creation of millimeter-wave/terahertz devices based on new materials and/or new operation principles, we are theoretically and experimentally investigating physics in the devices such as electron-transport phenomena and optoelectronic properties. Furthermore, we are conducting research and development of the devices for their applications to future ultra-fast wireless communications and photonics-electronics convergence networks.
Ultra-broadband Quantum Electronics (Assoc. Prof. Lin)
Research topics
- Research on hetero/quantum structures of compound semiconductors and two-dimensional thin films and their terahertz applications.
- Research on optoelectronic devices and their communication applications in high-capacity wireless networks.
- Research on physical properties of hetero/quantum structures in quantum cascade lasers and their mid-infrared to terahertz applications.
We are creating semiconductor optoelectronic devices in the millimeter-wave and terahertz regions, theoretically and experimentally study on electronic transport and optoelectronic properties at novel materials and hetero/quantum structures. Research and development of high-intensity terahertz sources, high-efficiency photoelectric convertor and detector for future ultra-broadband wireless communication systems.
