Search
Menu
Bristol Instruments, Inc. - 872 Series High-Res 4/24 LB
Photonics Dictionary

beam divergence

Increase in the diameter of an initially collimated beam, as measured in milliradians (mrad) at specified points; i.e., where irradiance is a given fraction (often 1/e2) of peak irradiance.
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.