Infrared-far-infrared stabilized laser system with adjustable frequency offset for spectroscopic measurements

J. Sárközi, J. S. Bakos, G. P. Djotyan, Zsuzsa Sörlei

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Abstract

A double resonance infrared-far-infrared spectroscopic system is described. The variation of the 118.8 μm wavelength gain line shape of the methanol far-infrared laser on the diameter of the pump CO2 laser beam due to the induced nonlinear waveguiding effect has been measured. The high-frequency stability and continuous tunability of the pump CO2 lasers necessary for such measurement were achieved by frequency offset locking them to a molecular line center stabilized reference laser. The long term frequency stability achieved for the offset locked lasers is 24 kHz.

Original languageEnglish
Pages (from-to)3454-3457
Number of pages4
JournalReview of Scientific Instruments
Volume67
Issue number10
DOIs
Publication statusPublished - Oct 1996

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ASJC Scopus subject areas

  • Instrumentation

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