Observation and measurement of molecular flow using stimulated Raman gain spectroscopy
Abstract
The observation and measurement of frequency shifts in stimulated Raman gain spectroscopy resulting from subsonic molecular nitrogen flows emerging from a simple nozzle are reported. The flow velocity in the region of the measurement was determined to be 145 m/s with an accuracy of plus or minus 30 m/s. It is expected that significantly better flow-velocity resolution will be obtained in future experiments using inverse Raman scattering.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- October 1981
- DOI:
- Bibcode:
- 1981IJQE...17.1975H
- Keywords:
-
- Flow Measurement;
- Flow Velocity;
- Laser Spectroscopy;
- Molecular Flow;
- Raman Spectroscopy;
- Velocity Measurement;
- Frequency Shift;
- High Resolution;
- Inverse Scattering;
- Nitrogen;
- Nozzle Flow;
- Subsonic Flow;
- Velocity Errors;
- Yag Lasers;
- Instrumentation and Photography