A fully biocompatible laser would be attractive in many aspects of biomedical research. Here we report a single-mode biocompatible distributed feedback laser consisting of silk, riboflavin and silver in the form of a freestanding film. The distributed feedback structure has a large surface area and flexibility. The fabricated laser exhibited single-mode lasing at a wavelength of 495 nm.
Y. Choi, H. Jeon and S. Kim, Lab Chip, 2015, 15, 642 DOI: 10.1039/C4LC01171F
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