Abstract

Fluorescence enhancement has been observed in dye-doped DNA biopolymer due to the unique intercalation properties derived from the double helix structure of DNA molecules. We report characterization of optical thin films based on dye-doped DNA biopolymer modified by aromatic surfactant. The photoluminescence, amplified spontaneous emission (ASE), as well as optical gain of the novel biopolymer materials were characterized. Results show that the surfactant may play an important role in the luminescence process where lower threshold and higher gain can be achieved with different types of surfactants. It demonstrates the flexibility in biopolymer manipulation that paves the way towards manufacture of highly efficient organic solid-state lasers.

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