Absorption spectroscopy is a "workhorse" technology widely used in industry and in chemistry, biology, medicine, and other fields of scientific research. Numerous sciences, including chemistry and astronomy, have reached their current state of...

Absorption spectroscopy refers to a range of techniques employing the interaction of electromagnetic radiation with matter. (Spectroscopy is a word that has come to denote an even wider variety of techniques used in physics and chemistry.) In absorption...