Dear Colleagues and Participants,

On behalf of the organizing committee, I am delighted to welcome you to the 9th A3 Metamaterials Forum 2025, hosted at KAIST in Daejeon, Korea. It is a true honor to have all of you here, and I am excited to embark on this journey of scientific exchange and collaboration.

The A3 Metamaterials Forum has grown into a premier platform for presenting cutting-edge research in the field of metamaterials and photonics in Asia. This year’s forum promises to continue that tradition, bringing together distinguished speakers and brilliant minds from Japan, China, Korea, and beyond to share the latest breakthroughs in metamaterials, photonic crystals, plasmonics, and nanophotonics.

As we gather here over the next few days, I encourage each of you to take full advantage of this opportunity to network, share your work, and explore the innovative ideas that are shaping the future of metamaterials and related technologies. This forum is not just about presentations; it's about building collaborations and fostering long-lasting connections that will continue to drive our field forward.

Thank you for being a part of this important event. I look forward to the stimulating discussions, collaborative efforts, and shared successes that will emerge from this year’s A3 Metamaterials Forum.

Best regards,

Bumki Min

Conference Chair, The 9th A3 Metamaterials Forum 2025
Professor, Department of Physics, KAIST, Korea