We report frequency measurements at the rovibronic transition P(42)1-14 (772 nm) and R(114)2-11 (735 nm) from the electronic transition of the iodine molecule 127I2 with the help of a frequency comb as a reference. By using Doppler-free saturation spectroscopy a frequency precision in the 7 × 10−10 region is reached and two iodine cells both operated at 550–600 °C are compared. To relate our results to other measurements, the absolute transition frequency of the hyperfine structure line P(148)1-14 a1 at 780 nm with an already known transition frequency was also determined.
Fields of Expertise
- Advanced Materials Science
Reinhardt, S., Bernhardt, B., Geppert, C., Holzwarth, R., Huber, G., Karpuk, S., ... Udem, T. (2007). Absolute frequency measurements and comparisons in iodine at 735nm and 772nm. Optics Communications, 274(2), 354 - 360. https://doi.org/10.1016/j.optcom.2007.02.050