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

doi:10.1117/12.2545825

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10 March 2020 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

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Proceedings Volume 11277, Organic Photonic Materials and Devices XXII; 112770J (2020) https://doi.org/10.1117/12.2545825
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

In the present study, we fabricated novel electro-optic (EO) phase modulators using EO polymer waveguides and gold antenna arrays for continuous-wave terahertz (THz) detection. We used a cyclo-olefin polymer (COP) with very small absorption losses and low dielectric constants in the THz region as a substrate, enabling relatively large antenna size with small absorption loss for increasing modulation efficiency. By irradiating W-band (75-110 GHz) electromagnetic waves on the devices, we observed modulation sidebands in the measured optical spectra and successfully demonstrated the electromagnetic wave detection.

Conference Presentation

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Takahiro Kaji, Isao Morohashi, Yukihiro Tominari, Yoh Ogawa, Norihiko Sekine, Toshiki Yamada, and Akira Otomo "Continuous-wave terahertz detectors using electro-optic polymer waveguides and gold antenna arrays (Conference Presentation)", Proc. SPIE 11277, Organic Photonic Materials and Devices XXII, 112770J (10 March 2020); https://doi.org/10.1117/12.2545825

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