You may not be aware, but 2015 is the International Year of Light (or “IYL 2015”) – a global initiative adopted by the United Nations and UNESCO to raise awareness of how light and optical technologies can promote sustainable development and provide solutions to worldwide challenges in energy, education, agriculture, communications and health. Along with over 100 scientific bodies spanning countries all around the world, SPIE organised a photo contest some time ago, and to my […]