000K  utf8
1100  $c2006
1500  ger
2050  urn:nbn:de:gbv:8-diss-16248
3000  Esch, Daniel
4000  Messung der elektrischen Feldstärke in einer Gasentladung mittels Doppler-freier optogalvanischer Spektroskopie unter Verwendung von Laserdioden$hChristian-Albrechts-Universität zu Kiel  [Esch, Daniel]
4030  Kiel$nChristian-Albrechts-Universität zu Kiel
4209  A new highly-sensitive method for the detection of the local electric field strength in hydrogen discharges is presented in this Thesis. This method is ideally suited for systems with low electric field strength. Using the intermodulated optogalvanic spectroscopy, Doppler-free spectra of the first Balmer line of Hydrogen were taken in the cathode fall of a low pressure glow discharge. Once the theoretical splitting is known, the electric field strength can be determined from the position of the Doppler-free Stark components of the hydrogen Balmer alpha line. To obtain the electric field strength these profiles were fitted to the Doppler-free optogalvanic spectra. It has been shown for the first time that by using the Doppler-free intermodulated optogalvanic spectroscopy isolated Stark components may be measured. This novel technique is a key development for the investigation of low electric field strengths in low pressure glow discharges.
4950  https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-16248$xR$3Volltext$534
4961  https://macau.uni-kiel.de/receive/diss_mods_00001624
5051  530
5550  diode laser
5550  Doppler-free
5550  electric field strength
5550  Elektrische Feldstärke
5550  Gasentladung
5550  hydrogen discharge
5550  Laserdiode
5550  optogalvanic spectroscopy
5550  Optogalvanische Spektroskopie