{'fraction_non_alphanumeric': 0.02577319587628866, 'fraction_numerical': 0.006872852233676976, 'mean_word_length': 5.072916666666667, '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}}
Microfluidic Ionic Liquid Dye Laser

In this work, by utilizing ionic liquid as the gain medium solvent, which is a new category of materials, we demonstrated a droplet-based dye laser system in a co-flowing microfluidic device. We characterized the droplet laser system and achieved a lasing threshold of 40.1 μJ/mm2. Owning to the unique properties of ionic liquids, such as negligible vapor pressure and good thermal and chemical stability, they offer great potentials for the development of on-chip light sources, tunable optofluidic devices, and sensitive biochemical analysis.