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Probing quantum-mechanical level repulsion in disordered systems by means of time-resolved selectively excited resonance fluorescence

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Malyshev, Andrey and Knoeste, J. (2007) Probing quantum-mechanical level repulsion in disordered systems by means of time-resolved selectively excited resonance fluorescence. Physical review letters, 98 (8). ISSN 0031-9007

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.087401


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Abstract

We argue that the time-resolved spectrum of selectively-excited resonance fluorescence at low temperature provides a tool for probing the quantum-mechanical level repulsion in the Lifshits tail of the electronic density of states in a wide variety of disordered materials. The technique, based on detecting the fast growth of a fluorescence peak that is redshifted relative to the excitation frequency, is demonstrated explicitly by simulations on linear Frenkel exciton chains.


Item Type:Article
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©American Physical Society.
This work was supported by the programs Ramón y Cajal (Ministerio de Ciencia y Tecnología de España) and NanoNed (Dutch Ministry of Economic Affairs).

Uncontrolled Keywords:Localized frenkel excitons; Linear-chains; Dynamics; Relaxation; Diffusion
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:45739
Deposited On:15 Dec 2017 18:07
Last Modified:15 Dec 2017 18:07

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