Abstract
We present high-resolution spectroscopy of I 2 vapor that is loaded and trapped within the core of a hollow-core photonic crystal fiber (HC-PCF). We compare the observed spectroscopic features to those observed in a conventional iodine cell and show that the saturation characteristics differ significantly. Despite the confined geometry it was still possible to obtain sub-Doppler features with a spectral width of ∼ 6 MHz with very high contrast. We provide a simple theory which closely reproduces all the key observations of the experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 11906-11917 |
| Number of pages | 12 |
| Journal | Optics Express |
| Volume | 20 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2012 |
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