CARS study of linewidths of the Q-branch of hydrogen molecules at high temperatures in a pulsed high-pressure H{sub 2}-O{sub 2} combustion chamber
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
- German Aerospace Research Centre, DLR, Hardthausen (Germany)
The results of measurements of individual line widths of the Q-branch of a hydrogen molecule and the corresponding coefficients of broadening caused by collisions with water molecules at T = 2700 K in a repetitively pulsed high-pressure (50-200 atm) hydrogen-oxygen combustion chamber are presented. CARS spectra of individual Q{sub 1}-Q{sub 7} hydrogen lines, pressure pulses, and the broadband CARS spectra of the entire Q-branch of hydrogen are recorded simultaneously during a single laser pulse. The shape of line profiles was analysed using a Fabry-Perot interferometer. The temperature in the volume being probed was determined from the 'broadband' CARS spectra. The entire body of the experimental results gives information on the spectral linewidths, temperature and pressure in the combustion chamber during CARS probing. (laser applications and other topics in quantum electronics)
- OSTI ID:
- 21470710
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 3 Vol. 35; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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High-resolution line-shape spectroscopy during a laser pulse based on Dual-Broad-Band-CARS interferometry
CARS diagnostics of the burning of H{sub 2} - O{sub 2} and CH{sub 4} - O{sub 2} mixtures at high temperatures and pressures
Journal Article
·
Mon Jul 31 00:00:00 EDT 2006
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:21466548
CARS diagnostics of the burning of H{sub 2} - O{sub 2} and CH{sub 4} - O{sub 2} mixtures at high temperatures and pressures
Journal Article
·
Mon Jan 30 23:00:00 EST 2012
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:22044033
Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
COMBUSTION CHAMBERS
ELEMENTS
FABRY-PEROT INTERFEROMETER
HYDROGEN
HYDROGEN COMPOUNDS
INTERFEROMETERS
LASERS
LINE WIDTHS
MEASURING INSTRUMENTS
MOLECULES
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PRESSURE RANGE
PRESSURE RANGE MEGA PA
PRESSURE RANGE MEGA PA 10-100
PULSES
RAMAN EFFECT
SPECTRA
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
WATER
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
COMBUSTION CHAMBERS
ELEMENTS
FABRY-PEROT INTERFEROMETER
HYDROGEN
HYDROGEN COMPOUNDS
INTERFEROMETERS
LASERS
LINE WIDTHS
MEASURING INSTRUMENTS
MOLECULES
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PRESSURE RANGE
PRESSURE RANGE MEGA PA
PRESSURE RANGE MEGA PA 10-100
PULSES
RAMAN EFFECT
SPECTRA
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
WATER