Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. analysis and testing techniques
6. spectroscopy

Anotations

Scope note:

Spectroscopic flow visualization technique that uses ultrashort pulse lasers for the study of dynamics on extremely short time scales; fluorescent markers are excited by a laser beam; used to make visible disturbances that occur in fluid flow.