Dr. Akira Otomo Profile

Dr. Akira Otomo

Director, Nano-scale Functional Assembly ICT Lab. at NICT

SPIE Involvement:

Conference Program Committee | Author

Publications (25)

Proceedings Article | 13 March 2024 Poster

Poster

Demonstration of optical beam manipulation with optical phased array using EO polymer and Si3N4 dual-layer waveguides

Yuji Miyamoto, Masato Miura, Junichi Shibasaki, Masakazu Namba, Kenji Machida, Rieko Ueda, Takahiro Kaji, Toshiki Yamada, Akira Otomo, Yoshikuni Hirano

Proceedings Volume PC12889, PC1288912 (2024) https://doi.org/10.1117/12.3001293

KEYWORDS: Phased array optics, Polymers, Waveguides, Polymer optics, Polymer multimode waveguides, Virtual reality, Refractive index, LIDAR, Electro optic polymers, Augmented reality

Proceedings Article | 3 October 2023 Presentation + Paper

Presentation + Paper

Optical phased array with high-speed and wide steering angle using organic EO polymer and inorganic waveguide structure

Shun Kamada, Maaya Tsukamoto, Toshihiro Okamoto, Masanobu Haraguchi, Akira Otomo

Proceedings Volume 12653, 126530B (2023) https://doi.org/10.1117/12.2677233

KEYWORDS: Waveguides, Antennas, Polarization, Plasmonic waveguides, Polymers, Polymer multimode waveguides, Niobium, Beam steering, Phased array optics, Crosstalk

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Proceedings Article | 14 March 2023 Presentation

Presentation

High performance EO polymer modulator for visible wavelength (Conference Presentation)

Shun Kamada, Rieko Ueda, Chiyumi Yamada, Kouichi Tanaka, Toshiki Yamada, Akira Otomo

Proceedings Volume 12417, 124170I (2023) https://doi.org/10.1117/12.2648646

KEYWORDS: Polymers, Modulators, Absorption, Electro optic polymers, Visible radiation, Optogenetics, Optical properties, Optical modulators, Optical communications, Molecules

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Proceedings Article | 1 April 2022 Presentation

Presentation

Highly efficient electro-optic polymer modulator operating in visible wavelength

Shun Kamada, Rieko Ueda, Chiyumi Yamada, Kouichi Tanaka, Toshiki Yamada, Akira Otomo

Proceedings Volume PC11997, PC1199704 (2022) https://doi.org/10.1117/12.2608004

KEYWORDS: Modulators, Polymers, Electro optic polymers, Waveguides, Modulation, Waveguide modes, Single mode fibers, Silicon, Silica, Quantum optics

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Proceedings Article | 7 March 2022 Presentation

Presentation

Photostability of the organic EO polymer at 1310nm wavelength

Yukihiro Tominari, Toshiki Yamada, Takahiro Kaji, Akira Otomo

Proceedings Volume PC11998, PC1199807 (2022) https://doi.org/10.1117/12.2610460

KEYWORDS: Polymers, Data centers, Electro optic polymers, Absorption, Transceivers, Oxygen, Optical interconnects, Optical components, Optical communications, Molecular lasers

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Proceedings Article | 7 March 2022 Presentation

Presentation

Fabrication of free-standing films of poled EO polymers and laminated films for ultra-high-frequency electric field detection

Toshiki Yamada, Takahiro Kaji, Chiyumi Yamada, Akira Otomo, Tomoya Nakanishi, Hideyuki Tsunemori, Shigeki Fujimaru

Proceedings Volume PC11998, PC1199805 (2022) https://doi.org/10.1117/12.2607749

KEYWORDS: Polymers, UHF band, Terahertz radiation, Terahertz technology, Terahertz spectroscopy, Spectroscopy, Absorption, Wireless communications, Nondestructive evaluation, Millimeter wave sensors

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Proceedings Article | 7 March 2022 Presentation

Presentation

Electro-optic polymers for visible light

Akira Otomo, Kouichi Tanaka, Chiyumi Yamada, Rieko Ueda, Shun Kamada, Toshiki Yamada

Proceedings Volume PC11998, PC1199806 (2022) https://doi.org/10.1117/12.2608043

KEYWORDS: Polymers, Visible radiation, Electro optic polymers, Modulators, Optical communications, LIDAR, Electro optics, Absorption, 3D displays

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Proceedings Article | 7 March 2022 Presentation

Presentation

150-GHz-band antenna-coupled optical modulators using electro-optic polymer waveguides and patch antenna arrays

Takahiro Kaji, Isao Morohashi, Yukihiro Tominari, Toshiki Yamada, Akira Otomo

Proceedings Volume PC12000, PC120000C (2022) https://doi.org/10.1117/12.2610407

KEYWORDS: Waveguides, Polymers, Optical modulators, Antennas, Electro optic polymers, Terahertz radiation, Optical arrays, Wireless communications, Signal attenuation, Radio over Fiber

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Proceedings Article | 5 March 2021 Presentation

Presentation

Evaluation and application of Stark effect of EO polymers

Akira Otomo, Toshiki Yamada

Proceedings Volume 11683, 1168306 (2021) https://doi.org/10.1117/12.2585607

KEYWORDS: Polymers, Terahertz radiation, Absorption, Refractive index, Particle accelerators, Millimeter wave sensors, Electromagnetic radiation

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Proceedings Article | 5 March 2021 Presentation

Presentation

Design of an optical phased array using an electro-optic polymer waveguide serially grafted with a silicon nitride waveguide

Yuji Miyamoto, Masato Miura, Yoshikuni Hirano, Nobuhiko Funabashi, Rieko Ueda, Chiyumi Yamada, Takahiro Kaji, Toshiki Yamada, Akira Otomo, Kenji Machida

Proceedings Volume 11690, 1169003 (2021) https://doi.org/10.1117/12.2576623

KEYWORDS: Waveguides, Phased array optics, Electro optic polymers, Silicon, Polymers, Optical design, Stray light, Polymer multimode waveguides, Light wave propagation, Electro optics

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Proceedings Article | 5 March 2021 Poster + Presentation

Poster + Presentation

Plasmonic waveguide-based antenna for wide steering angle in the optical phased array

Shun Kamada, Toshihiro Okamoto, Masanobu Haraguchi, Akira Otomo

Proceedings Volume 11689, 116891G (2021) https://doi.org/10.1117/12.2574935

KEYWORDS: Antennas, Waveguides, Phased array optics, Plasmonics, Silicon, Polymers, Polymer multimode waveguides, Light wave propagation, Interfaces, Beam steering

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Proceedings Article | 5 March 2021 Presentation

Presentation

W-band optical modulators using organic EO polymer waveguides and patch antenna arrays

Takahiro Kaji, Isao Morohashi, Yukihiro Tominari, Yoh Ogawa, Norihiko Sekine, Toshiki Yamada, Akira Otomo

Proceedings Volume 11683, 1168305 (2021) https://doi.org/10.1117/12.2578218

KEYWORDS: Polymers, Antennas, Waveguides, Polymer multimode waveguides, Optical modulators, Electro optic polymers, Terahertz radiation, Nonlinear crystals, Polymer thin films, Modulation

Read Abstract +

Proceedings Article | 5 March 2021 Presentation

Presentation

Photostability of the organic EO polymers in the O-band

Y. Tominari, T. Yamada, T. Kaji, A. Otomo

Proceedings Volume 11683, 1168304 (2021) https://doi.org/10.1117/12.2578230

KEYWORDS: Polymers, Oxygen, Data centers, Absorption, Optical components, Transceivers, Temperature metrology, Optical communications, Laser irradiation, Laser communications

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Proceedings Article | 10 March 2020 Presentation

Presentation

Continuous-wave terahertz detectors using electro-optic polymer waveguides and gold antenna arrays (Conference Presentation)

Takahiro Kaji, Isao Morohashi, Yukihiro Tominari, Yoh Ogawa, Norihiko Sekine, Toshiki Yamada, Akira Otomo

Proceedings Volume 11277, 112770J (2020) https://doi.org/10.1117/12.2545825

KEYWORDS: Terahertz radiation, Antennas, Continuous wave operation, Electro optic polymers, Waveguides, Gold, Millimeter wave sensors, Polymers, Sensors, Absorption

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Proceedings Article | 26 February 2020 Paper

Paper

Phase compensation method for optical phased array based on phase-shifting digital holography

Masato Miura, Yuji Miyamoto, Yoshikuni Hirano, Yasushi Motoyama, Kenji Machida, Rieko Ueda, Chiyumi Yamada, Toshiki Yamada, Akira Otomo, Hiroshi Kikuchi

Proceedings Volume 11284, 1128424 (2020) https://doi.org/10.1117/12.2544093

KEYWORDS: Waveguides, Phase shifts, Phased array optics, Digital holography, Phase measurement, Phase compensation, Calibration, Beam steering, Light wave propagation, Polymers

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Proceedings Article | 5 October 2015 Presentation

Presentation

Development and characterization of thermally stable electro-optic polymers and devices (Presentation Recording)

Akira Otomo, Isao Aoki, Chiyumi Yamada, Toshiki Yamada

Proceedings Volume 9564, 956409 (2015) https://doi.org/10.1117/12.2187701

KEYWORDS: Polymers, Electro optic polymers, Electro optics, Optical communications, Modulators, Silicon photonics, Glasses, Molecules, Polarization, Communication and information technologies

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Proceedings Article | 1 October 2013 Paper

Paper

Bacteriorhodopsin-based bipolar photosensor for biomimetic sensing

Katsuyuki Kasai, Yoshihiro Haruyama, Toshiki Yamada, Makoto Akiba, Yukihiro Tominari, Takahiro Kaji, Toshifumi Terui, Ferdinand Peper, Shukichi Tanaka, Yoshitada Katagiri, Hiroshi Kikuchi, Yoshiko Okada-Shudo, Akira Otomo

Proceedings Volume 8817, 88170N (2013) https://doi.org/10.1117/12.2026517

KEYWORDS: Thin films, Coating, Visualization, Thin film coatings, Biomimetics, Edge detection, Proteins, Biosensing, Glasses, Electrodes

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Proceedings Article | 6 March 2013 Paper

Paper

Electro-optic waveguide with conductive chromophore contained polymer cladding

Kazuhiro Yamamoto, Feng Yu, Lu Li, Shiyoshi Yokoyama, Akira Otomo, Kei Yasui, Masaaki Ozawa

Proceedings Volume 8622, 86221K (2013) https://doi.org/10.1117/12.2003901

KEYWORDS: Polymers, Cladding, Chromophores, Waveguides, Polymer multimode waveguides, Electro optic polymers, Electro optics, Glasses, Polymethylmethacrylate, Gold

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Proceedings Article | 21 February 2013 Paper

Paper

On-chip superfocusing of surface plasmon using metal-coat tapered optical fiber pairs with nano-gap structures

Kazuhiro Yamamoto, Shiyoshi Yokoyama, Akira Otomo

Proceedings Volume 8632, 863228 (2013) https://doi.org/10.1117/12.2001735

KEYWORDS: Spiral phase plates, Metals, Tapered optical fibers, Surface plasmons, Etching, Gold, Silicon, Silver, Optical fibers, Near field

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Proceedings Article | 5 November 2010 Paper

Paper

Donor strengthening strategy for FTC-based organic nonlinear chromophore

Xianqing Piao, Xianmin Zhang, Shiyoshi Yokoyama, Hideki Miki, Isao Aoki, Akira Otomo

Proceedings Volume 7846, 784609 (2010) https://doi.org/10.1117/12.871734

KEYWORDS: Chromophores, Nonlinear optics, Polymers, Bridges, Absorption, Polymethylmethacrylate, Glasses, Electro optics, Polymer thin films, Molecules

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Proceedings Article | 14 September 2006 Paper

Paper

Photonic applications of the supermolecular nanostructures with photophysical processes controlled

Akira Otomo, Shiyoshi Yokoyama, Shinro Mashiko

Proceedings Volume 6320, 63200H (2006) https://doi.org/10.1117/12.681397

KEYWORDS: Molecules, Dendrimers, Energy transfer, Molecular interactions, Molecular energy transfer, Luminescence, Oxygen, Rhodamine B, Absorption, Laser scattering

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Proceedings Article | 18 December 2002 Paper

Paper

Inter- and intra-molecular energy transfers of encapsulated dyes in dendrimers

Akira Otomo, Minniu Zhou, Seiichi Furumi, Shiyoshi Yokoyama, Shinro Mashiko

Proceedings Volume 4798, (2002) https://doi.org/10.1117/12.452095

KEYWORDS: Dendrimers, Energy transfer, Molecular energy transfer, Molecules, Absorption, Absorbance, Rhodamine B, Luminescence, Optoelectronics, Molecular interactions

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Proceedings Article | 7 December 2001 Paper

Paper

Remarkable optical properties of dendrimers for laser applications

Akira Otomo, Sonoko Otomo, Shiyoshi Yokoyama, Tatsuo Nakahama, Shinjo Mashiko

Proceedings Volume 4461, (2001) https://doi.org/10.1117/12.449831

KEYWORDS: Dendrimers, Laser scattering, Scattering, Waveguides, Oxygen, Polymers, Molecules, Optical properties, Polymer multimode waveguides, Polymethylmethacrylate

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Proceedings Article | 16 October 1998 Paper

Paper

Nonlinear optical probes of nanoscale devices

Keith Meyers, William Torruellas, Akira Otomo, Shinjo Mashiko, Pajo Vujkovic-Cvijin

Proceedings Volume 3473, (1998) https://doi.org/10.1117/12.328186

KEYWORDS: Near field optics, Electrodes, Nonlinear optics, Spatial resolution, Molecules, Signal detection, Microscopes, Interfaces, Near field scanning optical microscopy, Atomic force microscopy

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Proceedings Article | 23 September 1994 Paper

Paper

Novel geometry for second-harmonic generation in poled polymers

Gustaaf Moehlmann, Winfried Horsthuis, Akira Otomo, George Stegeman

Proceedings Volume 2285, (1994) https://doi.org/10.1117/12.187525

KEYWORDS: Waveguides, Second-harmonic generation, Electroactive polymers, Channel waveguides, Polarization, Harmonic generation, Wave propagation, Signal processing, Electrodes, Convolution

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Showing 5 of 25 publications

Conference Committee Involvement (13)

Organic Photonic Materials and Devices XXVII

29 January 2025 | San Francisco, California, United States

Organic Photonic Materials and Devices XXVI

31 January 2024 | San Francisco, California, United States

Organic Photonic Materials and Devices XXV

1 February 2023 | San Francisco, California, United States

Organic Photonic Materials and Devices XXIV

26 January 2022 | San Francisco, California, United States

Organic Photonic Materials and Devices XXIII

6 March 2021 | Online Only, California, United States

Showing 5 of 13 Conference Committees

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