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Amplified Spontaneous Emission from Fluorescent-Dye-Doped DNA-Surfactant Complex Films
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2000
Year
Dna HostDna NanotechnologyEngineeringAmplified Spontaneous EmissionLaser PhotochemistryApplied PhysicsMolecular BiologySalmon DnaThin FilmsOptical SpectroscopyPhotophysical PropertySingle-molecule DetectionBiophysics
Laser action in a DNA host is presented here for thin films composed of rhodamine 6G dye intercalated in salmon DNA (shown schematically in the Figure). Recent reports of the semiconducting properties of DNA inspired these authors to investigate its effects in solid-state dye lasing. Amplified spontaneous emission with spectral line narrowing was observed under nanosecond optical pumping.