, 2020). These boosts in both of those peak absorption cross area and width on the 450 nm absorption band in excess of linearly increase the strength on the chromophore with focus. Other chromophores in natural corundum don't display these changes and so exhibit a constant strength with focus. Therapy: https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share