Time-resolved random laser spectroscopy of inhomogeneously broadened systems
authors Fernandez, J; Garcia-Revilla, S; Carlos, LD; Pecoraro, E; Arriandiaga, MA; Balda, R
nationality International
journal LASER & PHOTONICS REVIEWS
author keywords time-resolved luminescence; excited state relaxation dynamics; Forster resonance energy transfer; random lasers
keywords EMISSION; DYES
abstract The understanding of energy transfer processes in biological systems occurring among optical centres which exhibit inhomogeneously broadened spectral bands is of paramount importance to determine time constants and spatial distribution of energy flow. A new time resolved-spectroscopy based on the random laser generation of the optical probes is reported. As an example, the excited state relaxation of Rhodamine B molecules in an organic-inorganic hybrid material is investigated. This kind of spectroscopy may resolve not only the spectral features of the system but also provide a high speed picture of the energy transfer and excited state relaxation of the involved optical probes. The results could be applied to other kind of efficient interacting chromophore pairs embedded in inhomogeneous scattering structures such as biological tissues.
publisher WILEY-V C H VERLAG GMBH
issn 1863-8880
year published 2014
volume 8
issue 3
beginning page L32
ending page L36
digital object identifier (doi) 10.1002/lpor.201300191
web of science category Optics; Physics, Applied; Physics, Condensed Matter
subject category Optics; Physics
unique article identifier WOS:000335570000002
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