Ms . McCleod has limited her stable of potential profile candidates to people for whom there are photographs available, including Lillie Langtry and Hetty Green, a woman who made $ 100 million in the early 1900s through investing.
12.
For example, the potential profile across the quantum well structure of a diode laser can be mapped and analyzed; such a profile could indicate the electron and hole distributions where light is generated and could lead to improved laser designs.