DNA-based lasing: A DNA-lipid (CTMA) complex enables the formation of well controlled thin films. The DNA-CTMA molecular drawing shows possible intercalation sites (1, 2, 3) for sulforhodamine (SRh) molecules. A Bragg laser structure consisting of a SiO2 periodic grating is fabricated on a Si substrate. For details, see the paper by Yu et al., pp. 1507-1513.
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