Prompt
"Generate a realistic portrait of Sir Charles Kuen Kao, a renowned physicist and engineer, in a formal setting, possibly with a subtle background related to fiber optics or telecommunications, reflecting his pioneering work in the field; he should be depicted with a dignified expression, wearing attire suitable for a distinguished gentleman of his era, and may include symbols or elements representing his achievements, such as an award or a device related to his work in fiber-optic communication."
