Scientists Turn Fat Cells Into Tiny Lasers

In the last few decades, lasers have become an important part of our lives, with applications ranging from laser pointers and CD players to medical and research uses. Lasers typically have a very well-defined direction of propagation and very narrow and well-defined emission color. We usually imagine a laser as an electrical device we can hold in our hands or as a big box in the middle of a research laboratory.

Fluorescent dyes have also become commonplace, routinely used in research and

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