Dr. Seigo Ohno Profile

Dr. Seigo Ohno

at Tohoku Univ

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 13 March 2023 Presentation

Terahertz wave parametric wavelength conversion monitored by spectral drill cavity

Shin'ichiro Hayashi, Seigo Ohno, Katsuhiko Miyamoto, Yoshiharu Urata, Norihiko Sekine

Proceedings Volume PC12420, PC1242007 (2023) https://doi.org/10.1117/12.2650843

KEYWORDS: Terahertz radiation, Nonlinear crystals, Nd:YAG lasers, Pyroelectric detectors, Standards development, Spatial light modulators, Physics, Phase shifts, Output couplers, Mirrors

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Proceedings Article | 7 March 2022 Poster + Presentation

Frequency controlled terahertz wave parametric generation based on spectral drill cavity

Shin'ichiro Hayashi, Yoshiharu Urata, Seigo Ohno, Katsuhiko Miyamoto, Norihiko Sekine

Proceedings Volume PC12000, PC120000M (2022) https://doi.org/10.1117/12.2607441

KEYWORDS: Terahertz radiation, Nonlinear crystals, Resonators, Nd:YAG lasers, Pyroelectric detectors, Standards development, Spatial light modulators, Physics, Phase shifts, Output couplers

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Proceedings Article | 15 June 2020 Paper

Broadband terahertz single pixel imaging system

Adam Vallés, Jiahuan He, Taisei Ookawa, Seigo Ohno, Katsuhiko Miyamoto, Takashige Omatsu

Proceedings Volume 11522, 1152212 (2020) https://doi.org/10.1117/12.2573770

KEYWORDS: Terahertz radiation, Imaging systems, Signal to noise ratio, Cameras, Sensors, Mirrors, Bolometers, Spatial resolution, Reconstruction algorithms, Absorption

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Proceedings Article | 30 March 2020 Presentation + Paper

Terahertz Fresnel-zone-plate film lens based on double-layer metamaterial phase shifter

Zhengli Han, Yuma Takida, Seigo Ohno, Hiroaki Minamide

Proceedings Volume 11348, 1134806 (2020) https://doi.org/10.1117/12.2555293

KEYWORDS: Terahertz radiation, Metamaterials, Phase shifts, Lens design, Polymers, Wavefronts, Transmittance, Zone plates, Polymer thin films, Double patterning technology

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