Abstract

Optical, electrical and discharge product measurements were performed in order to reveal thebehaviour of N2(A 3
+u ) metastables in a surface dielectric barrier discharge (DBD) driven inN2 with small NO admixtures in a modulated ac regime. Metastable species were detectedboth in a thin surface plasma layer and in the space afterglow through plasma induced emissionand optical-optical double resonance laser induced fluorescence, respectively. Basically, theobserved N2(A 3
+u ) species follow the discharge current oscillations in the plasma layer,while they evolve on a millisecond time scale due to diffusion through the space afterglow.Emission spectrometry provides a rough estimation of average metastable concentration in athin surface plasma layer ~ 9 × 1013 cm-3. Fluorescence measurements then allow an upperestimation of metastable concentration in the space afterglow
1 × 1012 cm-3.

Autore Pugliese

• Dilecce Giorgio , Ambrico Paolo Francesco

Tutti gli autori

• M. Simek ; P.F. Ambrico ; S. De Benedictis ; G. Dilecce ; V. Prukner ; J. Schmidt

Titolo volume/Rivista

Journal of physics. D, Applied physics

Anno di pubblicazione

2010

ISSN

1361-6463

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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