Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. scientific concepts
5. physical sciences concepts
6. physics concepts
7. [energy and related concepts]
8. energy-related concepts
9. light-related concepts
10. luminescence

Anotations

Scope note:

Light emission that follows the absorption of energy by a substance from sources such as visible light, infrared light, ultraviolet light, electricity, cathode rays or x-rays, and that continues for a relatively long time after the energy supply has ceased.