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Single cell induced optical confinement in biological lasers

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Karl_2017_J_Phys_A_Appl._Phys._50_084005.pdf (4.223Mb)
Date
01/03/2017
Author
Karl, M.
Dietrich, C. P.
Schubert, M.
Samuel, I. D. W.
Turnbull, G. A.
Gather, M. C.
Funder
European Research Council
European Commission
European Commission
The Royal Society
Grant ID
640012
PCIG12-GA-2012-334407
659213
Keywords
Biolaser
Optical confinement
Microcavities
Fourier imaging
Hyperspectral imaging
QC Physics
QH301 Biology
T Technology
DAS
Metadata
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Abstract
Biological single cell lasers have shown great potential for fundamental research and next generation sensing applications. In this study, the potential of fluorescent biological cells as refractive index landscapes and active optical elements is investigated using a combined Fourier- and hyperspectral imaging technique. We show that the refractive index contrast between cell and surrounding leads to three dimensional confinement of photons inside living cells. The Fourier- and real-space emission characteristics of these biological lasers are closely related and can be predicted from one another. Investigations of the lasing threshold for different energy and momentum position in Fourier-space give insight into the fundamental creation of longitudinal and transverse lasing modes within the cell. These findings corroborate the potential of living biological materials for precision engineering of photonic structures and may pave the way towards low threshold polariton lasing from single cells.
Citation
Karl , M , Dietrich , C P , Schubert , M , Samuel , I D W , Turnbull , G A & Gather , M C 2017 , ' Single cell induced optical confinement in biological lasers ' , Journal of Physics D : Applied Physics , vol. 50 , no. 8 , 084005 . https://doi.org/10.1088/1361-6463/aa5367 , https://doi.org/10.1088/1361-6463/aa5367
Publication
Journal of Physics D : Applied Physics
Status
Peer reviewed
DOI
https://doi.org/10.1088/1361-6463/aa5367
ISSN
0022-3727
Type
Journal article
Rights
© 2017 IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Description
We acknowledge financial support from the European Research Council (ERC StG ABLASE, 640012), the Scottish Funding Council (via SUPA) and the European Union Marie Curie Career Integration Grant (PCIG12-GA-2012-334407). M.K. acknowledges funding from the EPSRC DTG (EP/M506631/1). M.S. acknowledges funding from the European Commission for a Marie Sklodowska-Curie Individual Fellowship (659213). I.D.W.S. acknowledges funding from a Royal Society Wolfson research merit award.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/10235

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