It is with immense pleasure and excitement that we welcome you to the 27^th Congress of theInternational Commission for Optics (ICO), 

Throughout our time together, we will explore and deliberate on a wide array of topics, ranging from fundamental optics research to its practical applications. As we gather here, let us seize this invaluable opportunity to exchange ideas, forge collaborations, and inspire one another towards a shared vision of harnessing the power of optics for the betterment of Society. Our discussions will not only revolve around the latest advancements in opticalscience and technology but will also emphasize how these innovations can be harnessed to
drive global linkages.

On behalf of the organizing committee, we extend my heartfelt gratitude to our esteemed speakers, sponsors, partners, and participants for their unwavering support and dedication towards making this conference a resounding success. Together, let us embark on this journey of exploration, innovation, and collaboration, as we work towards unlocking the boundless potential of optics globally.

Once again, welcome to the 27^th Congress of the International Commission for Optics.