Lawrence Berkeley National Laboratory
Berkeley Lab: Micro Worlds Project: Advanced Light Source
A discussion of the Advanced Light Source (ALS) facility and its use in material analysis and medicine.
NASA
Electromagnetic Spectrum: Ultraviolet Waves
Ultraviolet (UV) light has shorter wavelengths than visible light. Though these waves are invisible to the human eye, some insects can see them. The specific wavelength values are given. Uses and applications of these waves are explained.