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Long-range effects on optical absorption in quasiperiodic lattices

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Domínguez-Adame Acosta, Francisco (1996) Long-range effects on optical absorption in quasiperiodic lattices. Physics letters A, 217 (1). pp. 59-64. ISSN 0375-9601

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Official URL: http://dx.doi.org/10.1016/0375-9601(96)00314-3




Abstract

We consider exciton optical absorption in quasiperiodic lattices, focusing our attention on the Fibonacci case as a typical example. The absorption spectrum is evaluated by solving numerically the equation of motion of the Frenkel-exciton problem on the lattice, in which on-site energies take on two values according to the Fibonacci sequence. We find that the quasiperiodic order causes the occurrence of well-defined characteristic features in the absorption spectra. We also develop an analytical method that relates satellite lines with the Fourier pattern of the lattice. Our predictions can be used to determine experimentally the long-range quasiperiodic order from optical measurements.


Item Type:Article
Additional Information:

© 1996 Published by Elsevier B.V.
The author thanks E. Maciá, A. Sánchez and V. Malyshev for helpful comments. This work is supported by CICYT through project MAT95-0325.

Uncontrolled Keywords:Systems; Physics
Subjects:Sciences > Physics > Materials
ID Code:37913
Deposited On:26 May 2016 15:11
Last Modified:26 May 2016 15:11

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