N/sub 2/ laser (1 bar) induced micro metal plasma capable of igniting combustible mixtures

Journal Article · Fri Jul 15 00:00:00 EDT 1977 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.89592· OSTI ID:7309977

Herden, W; Bloss, W H

On the surface of a Cu target irradiated by a uv N/sub 2/ laser (TEA, pulse duration 300 ps, peak power 1 MW) a metallic plasma is generated due to the high brightness of the laser operating at atmospheric pressure. An interferometric study also using subnanosecond pulses from a N/sub 2/ laser (1 bar) demonstrates the development of shock wave and plasma with high temporal and spatial resolution. The plasma with an initial pressure of 2000 bar and a temperature of 30 000 K is capable of igniting a combustible mixture of CH/sub 4/-O/sub 2/. A new method for optical synchronization is well proved, delivering pictures as soon as 30 ns after plasma onset.

• Research Organization: Institut fuer Physikalische Elektronik, Boeblingerstrasse 70, Universitaet Stuttgart, D 7000 Stuttgart, Germany
• OSTI ID: 7309977
• Journal Information: Appl. Phys. Lett.; (United States), Vol. 31:2
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
COMBUSTION
PLASMA DIAGNOSTICS
COMBUSTION CHAMBERS
COPPER
GAS LASERS
IGNITION
INTERFEROMETRY
METHANE
NITROGEN
OXYGEN
SHOCK WAVES
ALKANES
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HYDROCARBONS
LASERS
METALS
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
PLASMA
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
700106* - Fusion Energy- Plasma Research- Plasma Production- (-1987)