Open AccessIgnition characteristics of methane/air premixed mixture by microwave-enhanced laser-induced breakdown plasma
Author(s) -
Atsushi Nishiyama,
Ahsa Moon,
Yuji Ikeda,
Jun Hayashi,
Fumiteru Akamatsu
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.0a1094
Subject(s) - plasma , microwave , ignition system , materials science , laser , methane , laser ignition , optics , atomic physics , chemistry , physics , organic chemistry , quantum mechanics , thermodynamics
A microwave-enhanced plasma generation technique was combined with laser-induced ignition to improve ignition characteristics. A locally intensified microwave field was formed near the laser-induced breakdown plasma. As the plasma absorbed the microwaves, the plasma emission intensity increased. The plasma lifetime could be controlled by changing the microwave oscillation duration. Furthermore, the microwave-enhanced laser-induced breakdown plasma improved the minimum ignition energy of the methane/air pre-mixture with just a small amount of absorbed microwave energy.