Noncontact optogalvanic signal detection in DC discharge CO2 lasers

A new noncontact method for detecting optogalvanic signals in DC discharge CO 2 lasers is reported. The presented technique is based on the detection of potential difference variations through a capacitor comprised of a discharge plasma column and a coaxial or parallel conductor. The obtained optoga...

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Veröffentlicht in:	Journal of applied spectroscopy 2012-05, Vol.79 (2), p.219-223
Hauptverfasser:	Silakhori, Kaveh, Refahizadeh, Mitra, Behjat, Abbas, Ghasemi, Hamed, Talebi, Mohammad
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical Chemistry Atomic/Molecular Structure and Spectra Physics Physics and Astronomy
Online-Zugang:	Volltext
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Zusammenfassung:	A new noncontact method for detecting optogalvanic signals in DC discharge CO 2 lasers is reported. The presented technique is based on the detection of potential difference variations through a capacitor comprised of a discharge plasma column and a coaxial or parallel conductor. The obtained optogalvanic signals exhibit better responsivity and pulse shape in comparison with other conventional techniques; in addition, they are detectable as far as 3 m from a signal source.
ISSN:	0021-9037 1573-8647
DOI:	10.1007/s10812-012-9586-2