Surface thermometry by laser-induced fluorescence
Abstract
A novel laser-induced fluorescence technique has been developed for measuring the surface temperature of reacting and nonreacting materials. The technique involves seeding the material to be examined with a temperature-sensitive phosphor (Dy:YAG) and monitoring the laser-induced fluorescence of the phosphor to determine the temperature. The Dy:YAG phosphor displays a temperature sensitivity in the range 300-1700 K. The technique has been applied to both reacting and nonreacting surfaces under laser excitation, allowing temperature and temporal-history profiles to be determined.
- Publication:
-
Review of Scientific Instruments
- Pub Date:
- December 1989
- DOI:
- 10.1063/1.1140478
- Bibcode:
- 1989RScI...60.3702G
- Keywords:
-
- Carbon Dioxide Lasers;
- Laser Induced Fluorescence;
- Phosphors;
- Surface Temperature;
- Temperature Measurement;
- Data Acquisition;
- Dysprosium;
- Yttrium-Aluminum Garnet;
- Instrumentation and Photography