CLEO is a premier scientific conference focused on research and applications in photonics and electro-optics. Bringing together an international scientific community and industry, CLEO is known for its high-quality technical program and an opportunity to network with researchers at the forefront of the photonics community and companies from across the globe.

The submission period for post-deadline abstracts for CLEO 2025 is now open! These submissions provide a chance to present groundbreaking results discovered after the regular deadline—findings significant enough to be shared now rather than waiting for next year’s conference.

The submission window opens on 24 February and closes on 28 March 2025. All submissions will be peer-reviewed by CLEO technical program committee and a limited number of exceptional high-impact abstracts will be accepted.