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.

中文翻译：

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微流控离子液体染料激光器

在这项工作中，我们利用离子液体作为一种新型材料的增益介质溶剂，在共流微流体装置中展示了基于液滴的染料激光系统。我们对液滴激光系统进行了表征，并实现了 40.1 μJ/mm2 的激光阈值。由于离子液体具有可忽略不计的蒸气压和良好的热稳定性和化学稳定性等独特性质，它们为片上光源、可调光流控装置和灵敏的生化分析的发展提供了巨大的潜力。