The International Conference on Nano-photonics and Nano-optoelectronics 2023 (ICNN 2023), which will be held as part of the Optics & Photonics International Congress will take place in PACIFICO Yokohama, Japan from 19 April to 21 April 2023. The development of nanoscale devices is an area of research making great strides in both academic and industrial laboratories around the world. This conference will bring together like-minded researchers working in the areas of nano-photonics and Nano optoelectronics and will provide ample opportunities for peer interaction, inspiring presentations, exciting discussions, and invigorating debates.