Prof. Tadao Nagatsuma Profile

Prof. Tadao Nagatsuma

Reseacher at Osaka Univ

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Author

Publications (16)

Proceedings Article | 29 April 2016 Paper

A terahertz monolithic integrated resonant tunneling diode oscillator and mixer circuit

Sebastian Diebold, Kazuisao Tsuruda, Jae-Young Kim, Toshikazu Mukai, Masayuki Fujita, Tadao Nagatsuma

Proceedings Volume 9856, 98560U (2016) https://doi.org/10.1117/12.2225209

KEYWORDS: Oscillators, Diodes, Signal detection, Device simulation, Integrated circuits, Extremely high frequency, Resistance, Terahertz radiation, Transmitters, Lawrencium, Capacitors, Capacitance, Wireless communications, Modulation, Resonators

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Proceedings Article | 29 April 2016 Paper

Photonic crystal technology for terahertz system integration

Masayuki Fujita, Tadao Nagatsuma

Proceedings Volume 9856, 98560P (2016) https://doi.org/10.1117/12.2225151

KEYWORDS: Terahertz technology, Photonic crystals, System integration, Terahertz radiation, Transceivers, Silicon, Waveguides, Wave propagation, Receivers, Spectroscopy

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Proceedings Article | 25 February 2016 Paper

Coherent THz wave combiner composed of arrayed uni-traveling carrier photodiodes and planar lightwave circuit

K. Sakuma, J. Haruki, G. Sakano, K. Kato, S. Hisatake, T. Nagatsuma

Proceedings Volume 9747, 97471O (2016) https://doi.org/10.1117/12.2212017

KEYWORDS: Detector arrays, Terahertz sources, Terahertz radiation, Photonic integrated circuits, Photodiodes, Silica, Integrated optics, Antennas, Diodes, Sensors, Control systems, Optical amplifiers, Photography, Active optics, Channel projecting optics

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Proceedings Article | 24 September 2013 Paper

Nanotransistor based THz plasma detectors: low tempeatures, graphene, linearity, and circular polarization studies

W. Knap, D. But, N. Diakonova, D. Coquillat, M. Vitiello, S. Blin, A. El Fatimy, F. Teppe, A. Tredicucci, T. Nagatsuma, S. Ganichev

Proceedings Volume 8846, 88460M (2013) https://doi.org/10.1117/12.2024206

KEYWORDS: Field effect transistors, Terahertz radiation, Transistors, Sensors, Plasma, Graphene, Modulation, Resistance, Polarization, Terahertz detection

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Proceedings Article | 28 August 2010 Paper

Photonic generation of continuous terahertz waves and its application to sensing and communications

Ho-Jin Song, Naofumi Shimizu, Yuichi Kado, Tadao Nagatsuma

Proceedings Volume 7763, 776307 (2010) https://doi.org/10.1117/12.861731

KEYWORDS: Terahertz radiation, Signal generators, Wireless communications, Absorption, Remote sensing, Optical filters, Interference (communication), Telecommunications, Modulation, Receivers

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Proceedings Article | 9 February 2009 Paper

Active gas sensing with a highly-sensitive sub-terahertz receiver utilizing a superconductor-insulator-superconductor mixer and a photonics-based local oscillator

Kyoung-Hwan Oh, Ho-Jin Song, Naofumi Shimizu, Satoshi Kohjiro, Tomofumi Furuta, Atsushi Wakatsuki, Ken'ichi Kikuchi, Koji Suizu, Tadao Nagatsuma, Naoya Kukutsu, Yuichi Kado

Proceedings Volume 7215, 72150D (2009) https://doi.org/10.1117/12.808086

KEYWORDS: Receivers, Humidity, Heterodyning, Terahertz radiation, Oscillators, Transmittance, Sensing systems, Absorption, Toxic gases, Active remote sensing

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Proceedings Article | 28 August 2008 Paper

Efficient transmission through a plasmonic T-branch with a mesa structure in metal gap optical waveguides

J. Takahara, M. Nishimori, T. Nagatsuma

Proceedings Volume 7033, 70330Y (2008) https://doi.org/10.1117/12.794531

KEYWORDS: Waveguides, Metals, Neodymium, Wave propagation, Plasmonics, Dielectrics, Numerical simulations, Surface plasmon polaritons, Magnetism, Optical circuits

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Proceedings Article | 12 October 2007 Paper

10-Gbit/s wireless communications technology using sub-terahertz waves

Akihiko Hirata, Tadao Nagatsuma, Toshihiko Kosugi, Hiroyuki Takahashi, Ryoichi Yamaguchi, Naofumi Shimizu, Naoya Kukutsu, Koichi Murata, Yuichi Kado, Hidehiko Ikegawa, Hiroshi Nishikawa, Toshihiro Nakayama

Proceedings Volume 6772, 67720B (2007) https://doi.org/10.1117/12.733729

KEYWORDS: Extremely high frequency, Photonics, Receivers, Transmitters, Wireless communications, Multiplexing, Photonic integrated circuits, Modulation, Signal generators, Antennas

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Proceedings Article | 2 February 2007 Paper

Uni-traveling-carrier photodiodes for high-speed detection and broadband sensing

Hiroshi Ito, Tadao Nagatsuma, Tadao Ishibashi

Proceedings Volume 6479, 64790X (2007) https://doi.org/10.1117/12.698221

KEYWORDS: Photonics, Absorption, Photodiodes, Electrons, Terahertz radiation, Signal detection, Waveguides, Sensing systems, Antennas, Telecommunications

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Proceedings Article | 14 August 2003 Paper

High-speed and high-output-power unitraveling-carrier photodiodes

Hiroshi Ito, Tadao Nagatsuma

Proceedings Volume 5246, (2003) https://doi.org/10.1117/12.511223

KEYWORDS: Telecommunications, Photodiodes, Photonics, Electrons, Absorption, Picosecond phenomena, Imaging systems, Waveguides, Diodes, Wireless communications

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Proceedings Article | 1 July 2003 Paper

Ultrafast uni-traveling-carrier photodiodes for measurement and sensing systems

Hiroshi Ito, Tadao Nagatsuma

Proceedings Volume 4999, (2003) https://doi.org/10.1117/12.479809

KEYWORDS: Photodiodes, Absorption, Electrons, Diodes, Sensing systems, Photonics, Signal detection, Waveguides, Picosecond phenomena, Network security

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Proceedings Article | 30 May 2003 Paper

Ultrafast applications of uni-traveling-carrier photodiodes from measurement to signal processing

Tadao Nagatsuma, Hiroshi Ito

Proceedings Volume 4992, (2003) https://doi.org/10.1117/12.475712

KEYWORDS: Antennas, Photonics, Photodiodes, Signal detection, Ultrafast measurement systems, Absorption, Ultrafast phenomena, Network security, Electrons, Palladium

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Proceedings Article | 28 September 2001 Paper

Gold damascene interconnect technology for millimeter-wave photonics on silicon

Hiromu Ishii, Shouji Yagi, Tadashi Minotani, Yakov Royter, Kazuhisa Kudou, Masaki Yano, Tadao Nagatsuma, Katsuyuki Machida, Hakaru Kyuragi

Proceedings Volume 4557, (2001) https://doi.org/10.1117/12.442947

KEYWORDS: Gold, Silicon, Chemical mechanical planarization, Iodine, Extremely high frequency, Semiconducting wafers, Abrasives, Photonics, Dielectrics, Oxidation

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Proceedings Article | 20 October 2000 Paper

Microfabrication technology for high-speed Si-based systems

Hiromu Ishii, Shouji Yagi, Kunio Saito, Akihiko Hirata, Kazuhisa Kudou, Masaki Yano, Tadao Nagatsuma, Katsuyuki Machida, Hakaru Kyuragi

Proceedings Volume 4230, (2000) https://doi.org/10.1117/12.404913

KEYWORDS: Copper, Silicon, Chemical mechanical planarization, Ruthenium, Antennas, Nickel, Electroless plating, Gold, Dielectrics, Microfabrication

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Proceedings Article | 12 November 1999 Paper

Integrated packaging of uni-traveling-carrier photodiodes on sapphire substrate by wafer bonding

Yakov Royter, Tomofumi Furuta, Satoshi Kodama, Nabil Sahri, Tadao Nagatsuma, Tadao Ishibashi

Proceedings Volume 3795, (1999) https://doi.org/10.1117/12.370214

KEYWORDS: Sapphire, Wafer bonding, Semiconducting wafers, Absorption, Packaging, Photodiodes, Waveguides, Etching, Sodium, Semiconductors

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Proceedings Article | 15 May 1994 Paper

Diazo dye attached electro-optical polymer and its applications to waveguide devices and electro-optical sampling

Michiyuki Amano, Makoto Hikita, Yoshito Shuto, Toshio Watanabe, Satoru Tomaru, Makoto Yaita, Tadao Nagatsuma

Proceedings Volume 2143, (1994) https://doi.org/10.1117/12.173835

KEYWORDS: Polymers, Waveguides, Electro optic polymers, Electro optics, Chromophores, Polymer multimode waveguides, Absorption, Signal detection, Sensors, Modulation

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Showing 5 of 16 publications

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