Coherent interference in multiplex CARS measurements: nonresonant susceptibility enhancement due to laser breakdown

Journal Article · Sun Sep 15 00:00:00 EDT 1985 · Appl. Opt.; (United States)

DOI:https://doi.org/10.1364/AO.24.003010· OSTI ID:5273650

Beiting, E J

A coherent interference with multiplex CARS signals is observed. This effect appears when coal fly ash particles are injected into the combustion flow being probed. The interference has the same spectral characteristics of the Stokes broadband dye laser shifted to anti-Stokes frequencies and is correlated with weak particle-induced laser breakdown. Analysis indicates the phenomenon is due to the enhancement of the nonresonant susceptibility in the small volume of the discharge plasma.

• Research Organization: Mississippi State University, Physics Department and MHD Energy Center, Mississippi State, Mississippi 39762
• DOE Contract Number: AC02-80ET15601
• OSTI ID: 5273650
• Journal Information: Appl. Opt.; (United States), Vol. 24:18
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FLAMES
RAMAN SPECTRA
RAMAN SPECTROSCOPY
OPTICAL SPECTROMETERS
PERFORMANCE
COMBUSTION
DIELECTRIC PROPERTIES
EXPERIMENTAL DATA
FLY ASH
GAS FLOW
INTERFERENCE
PARTICLE SIZE
RESONANCE
AEROSOL WASTES
ASHES
CHEMICAL REACTIONS
DATA
ELECTRICAL PROPERTIES
FLUID FLOW
INFORMATION
LASER SPECTROSCOPY
MEASURING INSTRUMENTS
NUMERICAL DATA
OXIDATION
PHYSICAL PROPERTIES
RESIDUES
SIZE
SPECTRA
SPECTROMETERS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
WASTES
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry