Numerical study of Anderson localization of terahertz waves in disordered waveguides
- Lapointe, Clayton P. Physics Department, University of Fribourg, Switzerland
- Zakharov, Pavel Physics Department, University of Fribourg, Switzerland
- Enderli, F. Institute of Applied Physics, University of Bern, Switzerland
- Feurer, T. Institute of Applied Physics, University of Bern, Switzerland
- Skipetrov, S. E. Université Grenoble 1, France
- Scheffold, Frank Physics Department, University of Fribourg, Switzerland
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01.02.2014
Published in:
- EPL (Europhysics Letters). - 2014, vol. 105, no. 3, p. 34002
English
We present a numerical study of electromagnetic wave transport in disordered quasi–one-dimensional waveguides at terahertz frequencies. Finite element method calculations of terahertz wave propagation within LiNbO3 waveguides with randomly arranged air-filled circular scatterers exhibit an onset of Anderson localization at experimentally accessible length scales. Results for the average transmission as a function of waveguide length and scatterer density demonstrate a clear crossover from diffusive to localized transport regime. In addition, we find that transmission fluctuations grow dramatically when crossing into the localized regime. Our numerical results are in good quantitative agreement with theory over a wide range of experimentally accessible parameters both in the diffusive and localized regime opening the path towards experimental observation of terahertz wave localization.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 210172
- DOI 10.1209/0295-5075/105/34002
- Persistent URL
- https://folia.unifr.ch/unifr/documents/303740
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