An increase in electrical conductivity caused by light absorption (used in light sensors).
At its core, the response of a solid to light is determined by its ( ) and its dielectric function ( Optical Properties of Solids
Light passing through the medium. Transparent materials like glass have electronic gaps larger than the energy of visible light, meaning photons pass through without being absorbed. 2. The Role of Band Structure An increase in electrical conductivity caused by light
Understanding these properties allows us to engineer materials for specific tasks: , it can kick an electron from the
The optical properties of solids describe how electromagnetic radiation—ranging from infrared to ultraviolet—interacts with condensed matter. This field is essential for developing technologies like lasers, solar cells, and fiber optics.
, it can kick an electron from the valence band to the conduction band, causing absorption.
Made of ultra-pure glass with extremely low absorption ( ) to carry data over thousands of miles.