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Optica Publishing Group
  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper EG3_2

Absolute Frequency Spectroscopy at 4.3 μm by Direct Referencing of a Quantum-Cascade-Laser to an Er:fiber Laser-Based Frequency-Comb

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Abstract

The advent of optical frequency combs [1] has given in the past ten years a tremendous impulse to the field of frequency metrology. At present most comb-assisted experiments have been focused between the ultraviolet and the near-infrared (near-IR) spectral region while very few results [2,3,4] have been reported in the middle-infrared (mid-IR) despite its great interest due to the huge number of fundamental vibrational transitions that simple molecules exhibit in this region. Extensive comb-assisted study of such transitions would both enhance the accuracy of the available databases and favor a deeper insight into the comprehension of molecular physics.

© 2011 IEEE

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