Determination of Absorption-line Parameters Using 2-tone Frequency-modulation Spectroscopy With Diode-lasers

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Abstract

Accurate determination of line parameters from weak absorption using two-tone frequency-modulation spectroscopy (TTFMS) with a GaAlAs diode laser is demonstrated. The air-broadening of three oxygen A-band lines is determined, using a least-squares fit. For a peak absorption of 1.3 x 10(-3) the deviation between the experimental and the fitted spectrum is less than 1%. The fitting procedure is successfully tested on absorptions as small as 4.5 x 10(-5).

Detaljer

Författare
  • P Kauranen
  • V. G Avetisov
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
Originalspråkengelska
Sidor (från-till)213-217
TidskriftOptics Communications
Volym106
Utgivningsnummer4-6
StatusPublished - 1994
PublikationskategoriForskning
Peer review utfördJa
Externt publiceradJa