100 kHz krypton planar laser-induced fluorescence imaging
Abstract
Krypton planar laser-induced fluorescence (Kr PLIF) was demonstrated at a repetition rate of 100 kHz. To achieve this increased rate, a custom injection-seeded optical parametric oscillator was built to efficiently convert the 355 nm output of a high-energy, high-repetition-rate nanosecond burst-mode laser to 212.56 nm to excite Kr from the ground to the 5 p [ 1 / 2 ] 0 electronic state. Successful tracking of flow structures and mixture fraction was demonstrated using detection speeds 100 times greater than previously attained with a femtosecond laser source. The increase in repetition rate makes time-resolved Kr PLIF relevant for high-speed flows in particular.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 06, 2020
- Source ID
- 10.1364/ol.395389
Entities
People
- Campbell D. Carter
- Josef J. Felver
- Naibo Jiang
- Paul S. Hsu
- S. Alexander Schumaker
- Stephen W. Grib
- Sukesh Roy
Organizations
- Air Force Office of Scientific Research
- Arnold Engineering Development Complex