Dissertation (Metadaten)
Titel:Messung der elektrischen Feldstärke in einer Gasentladung mittels Doppler-freier optogalvanischer Spektroskopie unter Verwendung von Laserdioden
 
Autor:Daniel Esch
 
URN:NBN:urn:nbn:de:gbv:8-diss-16248
 
Fakultät:Mathematisch-Naturwissenschaftliche Fakultät
DDC Sachgebiet:530 Physik
 
Datum der mdl. Prüfung:27.01.2006
 
Referent(in):Prof. Dr. V. Helbig
Korreferent(en) Korreferentin:Prof. Dr. G. Pfister
 
Beschreibung (original):(Keine Zusammenfassung in englischer Sprache hinterlegt.)
 
(übersetzt):A new highly-sensitive method for the detection of the local electric field strength in hydrogen discharges is presented in this Thesis. This method is ideally suited for systems with low electric field strength. Using the intermodulated optogalvanic spectroscopy, Doppler-free spectra of the first Balmer line of Hydrogen were taken in the cathode fall of a low pressure glow discharge. Once the theoretical splitting is known, the electric field strength can be determined from the position of the Doppler-free Stark components of the hydrogen Balmer alpha line. To obtain the electric field strength these profiles were fitted to the Doppler-free optogalvanic spectra. It has been shown for the first time that by using the Doppler-free intermodulated optogalvanic spectroscopy isolated Stark components may be measured. This novel technique is a key development for the investigation of low electric field strengths in low pressure glow discharges.
 
Schlagworte:Gasentladung ; Elektrische Feldstärke ; Optogalvanische Spektroskopie ; Laserdiode
optogalvanic spectroscopy, hydrogen discharge, electric field strength, Doppler-free, diode laser
 
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