, 2020). This kind of raises in each peak absorption cross area and width in the 450 nm absorption band over linearly raise the power of the chromophore with focus. Other chromophores in natural corundum tend not to display these changes and so exhibit a constant toughness with focus. By https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share