Abstract

Complex optical systems such as deterministic aperiodic Mathieu lattices are known to hinder light diffraction in a manner comparable to randomized optical systems. We systematically incorporate randomness in our complex optical system, measuring its relative contribution of randomness, to understand the relationship between randomness and complexity. We introduce an experimental method for the realization of disordered aperiodic Mathieu lattices with numerically controlled disorder degree. Added disorder always enhances light transport. For lower disorder degrees, we observe diffusive-like transport, and in the range of highest light transport, we detect Anderson localization. With further increase of disorder degree, light transport is slowly decreasing and localization length decreases indicating more pronounced Anderson localization. Numerical investigation at longer propagation distances indicates that the threshold of Anderson localization detection is shifted to lower disorder degrees.

© 2022 Optica Publishing Group

Numerical methods for generation and characterization of disordered aperiodic photonic lattices

Dejan V. Timotijević, Jadranka M. Vasiljević, and Dragana M. Jović Savić
Opt. Express 30(5) 7210-7224 (2022)

Light localization in optically induced deterministic aperiodic Fibonacci lattices

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Defect-controlled transverse localization of light in disordered photonic lattices

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Morphing discrete diffraction in nonlinear Mathieu lattices

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Opt. Lett. 44(7) 1592-1595 (2019)

Modal perspective on the transverse Anderson localization of light in disordered optical lattices

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J. Opt. Soc. Am. B 30(6) 1452-1461 (2013)