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Single-shot, volumetrically illuminated, three-dimensional, tomographic laser-induced-fluorescence imaging in a gaseous free jet
- Source :
- Optics express. 24(9)
- Publication Year :
- 2016
-
Abstract
- Single-shot, tomographic imaging of the three-dimensional concentration field is demonstrated in a turbulent gaseous free jet in co-flow using volumetrically illuminated laser-induced fluorescence. The fourth-harmonic output of an Nd:YAG laser at 266 nm is formed into a collimated 15 × 20 mmsup2/supbeam to excite the ground singlet state of acetone seeded into the central jet. Subsequent fluorescence is collected along eight lines of sight for tomographic reconstruction using a combination of stereoscopes optically coupled to four two-stage intensified CMOS cameras. The performance of the imaging system is evaluated and shown to be sufficient for recording instantaneous three-dimensional features with high signal-to-noise (130:1) and nominal spatial resolution of 0.6-1.5 mm at x/D = 7-15.5.
- Subjects :
- Physics
Jet (fluid)
Tomographic reconstruction
business.industry
Laser
01 natural sciences
Atomic and Molecular Physics, and Optics
Collimated light
010305 fluids & plasmas
law.invention
010309 optics
Optics
law
0103 physical sciences
Tomography
Laser-induced fluorescence
business
Image resolution
Beam (structure)
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 24
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....1ebcfce1da1bf04c47c5fa24a74af281