{'fraction_non_alphanumeric': 0.025510204081632654, 'fraction_numerical': 0.03826530612244898, 'mean_word_length': 4.614285714285714, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Observation of the Fluorescence Light of Stored Ba+ Ions

We propose a method for the detection of the hyperfine structure resonance of 135Ba+ or 137Ba+ ions. It benefits from the existence of a metastable 5D level. The observation of the fluorescence light which is emitted in the 62P3/2 → 52D5/2 transition of Ba+ ions trapped in an alternating and inhomogeneous electric field is reported.