On 2nd October 2025, Koto Ariu (D1), Department of Electrical Engineering and Information Systems, received ECOC 2025 Best Student Paper Award, 1st Prize Winner.
ECOC 2025 Best Student Paper Award, 1st Prize Winner
European Conference on Optical Communication (ECOC) is one of the world’s largest and most prestigious international conferences in the field of optical communication. The Best Student Paper Award, 1st Prize Winner is given to a student whose work is recognized as outstanding among all accepted papers. After a rigorous oral examination in English conducted by the program committee, one student with the highest evaluation is selected for this honor. This year, out of 476 accepted papers, 11 top student authors were first shortlisted for oral examination, from which one was awarded as the 1st Prize Winner and two were recognized as Runners-Up.
About awarded research
Record-high modulation efficiency and speed were demonstrated experimentally for a surface normal optical modulator that consits of gold nanostructures and organic electro-optic material. This was achieved by efficiently trapping incident light within an extremely thin resonant cavity less than 1 µm thick. The device can be scaled to a two-dimensional array, offering great potential for applications in ultra-high-density optical interconnects and high-speed imaging.
Awarded paper: K. Ariu, G. Soma, H. Miyano, S. Karakida, and T. Tanemura, “High-speed free-space electro-optic modulator using double-layered dimerized nanometallic grating,” ECOC, Tu.03.02.2, Sept. 30, 2025.
Confererence (ECOC) website: https://ecoc2025.org/
Tanemura Lab website: https://www.tlab.t.u-tokyo.ac.
Your impression & future plan
I am deeply honored to receive this prestigious award. The research presented here has evolved from the early work I began during my undergraduate years, and I am truly delighted that the continued accumulation of our efforts over time has culminated in such distinguished recognition. I would like to express my heartfelt gratitude to Professor Takuo Tanemura for his invaluable guidance, to my co-authors, and to all the members of our laboratory. Encouraged by this award, I will continue to devote myself to further research and strive to contribute to society.
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