| Autor: |
Grynko, Yevgen, Siebert, Dustin, Sperling, Jan, Förstner, Jens |
| Rok vydání: |
2023 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
We present the results of full wave numerical simulations of light transmission by layers of irregular dielectric particles that demonstrate 3D Anderson localization of light in disordered uncorrelated discrete media. Our simulations show that a high degree of disorder in a dense layer prevents transverse spreading of a propagating beam and allows anomalous conservation of its initial polarization state. A transition from the purely diffusive regime to a non-exponential time dependence when approaching the Ioffe-Regel condition is observed in short pulse transmission measurements. Along with this, the transmission spectrum is consistent with the Thouless criterion. The effect depends on the turbidity of the layer: increasing the volume fraction and the refractive index leads to the enhancement of the non-exponential behavior caused by the disorder in the medium which is a clear signature of Anderson localization. |
| Databáze: |
arXiv |
| Externí odkaz: |
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