[11a-E310-1~10] 3.11 Nanoscale optical science and near-field optics

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[11a-E310-6] 110 ℃ Operation of Thermally Robust POH Metasurface Modulator

〇Koto Ariu¹, Seidai Karakida¹, Go Soma¹, Souya Kojima², Yoshimasa Bando², Takuo Tanemura¹ (1.The Univ. of Tokyo, 2.Mitsubishi Chemical Corp.)

Keywords:

Metasurface,EO polymer,Optical modulator

Plasmonic-organic hybrid (POH) metasurface modulator incorporating a high-glass-transition-temperature electro-optic polymer was fabricated, and stable operation from room temperature up to 110 °C was demonstrated for the first time. The device achieved a resonance wavelength tuning efficiency of 0.29 nm/V and a 3-dB EO bandwidth of 16.1 GHz, while maintaining an effective in-device r33 of approximately 58 pm/V up to 110 °C. The demonstrated thermal robustness is promising for spatial light modulation applications, including optical interconnects and LiDAR.