{'fraction_non_alphanumeric': 0.02666666666666667, 'fraction_numerical': 0.015555555555555555, 'mean_word_length': 5.094594594594595, '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 full ponderomotive shift for the photodetachment threshold in a strong laser field.

Electron-energy-resolved measurements of the threshold shift of negative chlorine ions have been performed under the influence of a strong (4.5×10 13 W/m 2 ) infrared laser field. The threshold shift is found to be in accordance with a full ponderomotive shift. Explanations are proposed for previously measured smaller-than-expected threshold shifts