A new design and operation of spectrally narrowed dye laser system using vapor prism dispersion

Dye lasers are known to oscillate with efficient spectral condensation when a frequency-selective unit is inserted into the laser cavity. The frequency selective elements used heretofore for this purpose were a diffraction grating or Fabry-Perot etalon, utilized either singly or in combination with each other (1), acousto-Optic filters (2) and others. Also several workers studied techniques for locking the oscillation frequency of dye lasers to the specific spectral lines of atoms and molecules. For these experiments, intracavity atomic gas cells were employed to provide Faraday rotation filter and gas discharge cell (3)-(5).