Search
Menu
Meadowlark Optics - Wave Plates 6/24 LB 2024
Photonics Dictionary

gain

Also known as amplification. 1. The increase in a signal that is transmitted from one point to another through an amplifier. A material that exhibits gain rather than absorption, at certain frequencies for a signal passing through it, is known as an active medium. 2. With reference to optical properties, the term may be defined in two ways: a. the relative brightness of a rear projection screen as compared with a perfect lambertian reflective diffuser; b. the ratio of brightness in footlamberts to incident illumination in footcandles. 3. In a photodetector, the ratio of electron-hole pairs generated per incident photon.
See Also
Related Terms

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.