Multi-state lasing in self-assembled ring-shaped green fluorescent protein microcavities
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We demonstrate highly efficient lasing from multiple photonic states in microcavities filled with self-assembled rings of recombinant enhanced green fluorescent protein (eGFP) in its solid state form. The lasing regime is achieved at very low excitation energies of 13 nJ and occurs from cavity modes dispersed in both energy and momentum. We attribute the momentum distribution to very efficient scattering of incident light at the surface of the eGFP rings. The distribution of lasing states in energy is induced by the large spectral width of the gain spectrum of recombinant eGFP (FWHM ≅ 25 nm).
Dietrich , C P , Höfling , S & Gather , M C 2014 , ' Multi-state lasing in self-assembled ring-shaped green fluorescent protein microcavities ' Applied Physics Letters , vol 105 , no. 23 . DOI: 10.1063/1.4904004
Applied Physics Letters
Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in: Dietrich, C. P., Höfling, S., & Gather, M. C. (2014). Multi-state lasing in self-assembled ring-shaped green fluorescent protein microcavities. Applied Physics Letters, 105(23), and may be found at http://dx.doi.org/10.1063/1.4904004
The authors acknowledge support from the Scottish Funding Council (via SUPA) and the European Union Marie Curie Career Integration Grant (PCIG12-GA-2012-334407).
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