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Bio-optimized energy transfer in densely packed fluorescent protein enables near-maximal luminescence and solid-state lasers

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  • Malte C. Gather

    (Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital
    SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife KY16 9SS, UK)

  • Seok Hyun Yun

    (Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital
    Harvard–MIT Health Sciences and Technology)

Abstract

Bioluminescent organisms are likely to have an evolutionary drive towards high radiance. As such, bio-optimized materials derived from them hold great promise for photonic applications. Here, we show that biologically produced fluorescent proteins retain their high brightness even at the maximum density in solid state through a special molecular structure that provides optimal balance between high protein concentration and low resonance energy transfer self-quenching. Dried films of green fluorescent protein show low fluorescence quenching (−7 dB) and support strong optical amplification (gnet=22 cm−1; 96 dB cm−1). Using these properties, we demonstrate vertical cavity surface emitting micro-lasers with low threshold (

Suggested Citation

  • Malte C. Gather & Seok Hyun Yun, 2014. "Bio-optimized energy transfer in densely packed fluorescent protein enables near-maximal luminescence and solid-state lasers," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6722
    DOI: 10.1038/ncomms6722
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