N-2(A(3)Sigma(+)(u)) time evolution in N-2 atmospheric pressure surface dielectric barrier discharge driven by ac voltage under modulated regime

0326557 - ÚFP 2010 RIV US eng J - Journal Article
Ambrico, P. F. - Šimek, Milan - Dilecce, G. - De Benedictis, S.
N-2(A(3)Sigma(+)(u)) time evolution in N-2 atmospheric pressure surface dielectric barrier discharge driven by ac voltage under modulated regime.
[Časový vývoj N2(A3SIGMAu+) v N2 povrchovém barierovém výboji v AC modulovaném režimu za atmosférického tlaku.]
Applied Physics Letters. Roč. 94, č. 23 (2009), s. 231503-231503. ISSN 0003-6951. E-ISSN 1077-3118
R&D Projects: GA ČR GA202/08/1106
Institutional research plan: CEZ:AV0Z20430508
Keywords : Atmospheric pressure surface-DBD * Nitrogen metastable * LIF * Optical emission spectroscopy
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 3.554, year: 2009

The relaxation of N2(A3SIGMAu+) metastable in N2 ac (5 KHz and 7 KVpp) surface dielectric barrier discharge driven under pulse modulated regime, TON=5 ms and TOFF=20 ms, at atmospheric pressure has been investigated. N2(A) has been detected by optical-optical double resonance laser induced fluorescence in a space layer (space afterglow) at 1 mm above the discharge electrode. The time evolution clearly shows that in the space afterglow layer N2(A) builds up and decay in millisecond time scale and does not vary in the voltage cycle.

Diagnostika N2(A) metastabilu produkovaných v povrchovém AC DBD výboji v dusíku za atmosférického tlaku byla provedena metodou OODR-LIF (Optical–Optical Double Resonance–Laser Induced Fluorescence).
Permanent Link: http://hdl.handle.net/11104/0173626