Numerical methods for generation and characterization of disordered aperiodic photonic lattices
Abstract
We introduce numerical modeling of two different methods for the deterministic randomization of two-dimensional aperiodic photonic lattices based on Mathieu beams, optically induced in a photorefractive media. For both methods we compare light transport and localization in such lattices along the propagation, for various disorder strengths. A disorder-enhanced light transport is observed for all disorder strengths. With increasing disorder strength light transport becomes diffusive-like and with further increase of disorder strength the Anderson localization is observed. This trend is more noticeable for longer propagation distances. The influence of input lattice intensity on the localization effects is studied. The difference in light transport between two randomization methods is attributed to various levels of input lattice intensity. We observe more pronounced localization for one of the methods. Localization lengths differ along different directions, due to the crystal and lattic...e anisotropy. We analyze localization effects comparing uniform and on-site probe beam excitation positions and different probe beam widths.
Keywords:
Holography, Gratings, and Diffraction / Anderson localization / Array waveguide devices / Disordered photonic crystals / Light diffraction / Light propagation / Nonlinear opticsSource:
Optics Express, 2022, 30, 5, 7210-7224Publisher:
- Optical Soc Amer, Washington
Funding / projects:
- Ministry of Education, Science, and Technological Development of the Republic of SerbiaMinistry of Education, Science & Technological Development, Serbia
DOI: 10.1364/OE.447572
ISSN: 1094-4087
PubMed: 35299488
WoS: 000763174800059
Scopus: 2-s2.0-85124795205
Collections
Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Timotijević, Dejan AU - Vasiljević, Jadranka M. AU - Jović-Savić, Dragana M. PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1525 AB - We introduce numerical modeling of two different methods for the deterministic randomization of two-dimensional aperiodic photonic lattices based on Mathieu beams, optically induced in a photorefractive media. For both methods we compare light transport and localization in such lattices along the propagation, for various disorder strengths. A disorder-enhanced light transport is observed for all disorder strengths. With increasing disorder strength light transport becomes diffusive-like and with further increase of disorder strength the Anderson localization is observed. This trend is more noticeable for longer propagation distances. The influence of input lattice intensity on the localization effects is studied. The difference in light transport between two randomization methods is attributed to various levels of input lattice intensity. We observe more pronounced localization for one of the methods. Localization lengths differ along different directions, due to the crystal and lattice anisotropy. We analyze localization effects comparing uniform and on-site probe beam excitation positions and different probe beam widths. PB - Optical Soc Amer, Washington T2 - Optics Express T1 - Numerical methods for generation and characterization of disordered aperiodic photonic lattices EP - 7224 IS - 5 SP - 7210 VL - 30 DO - 10.1364/OE.447572 ER -
@article{ author = "Timotijević, Dejan and Vasiljević, Jadranka M. and Jović-Savić, Dragana M.", year = "2022", abstract = "We introduce numerical modeling of two different methods for the deterministic randomization of two-dimensional aperiodic photonic lattices based on Mathieu beams, optically induced in a photorefractive media. For both methods we compare light transport and localization in such lattices along the propagation, for various disorder strengths. A disorder-enhanced light transport is observed for all disorder strengths. With increasing disorder strength light transport becomes diffusive-like and with further increase of disorder strength the Anderson localization is observed. This trend is more noticeable for longer propagation distances. The influence of input lattice intensity on the localization effects is studied. The difference in light transport between two randomization methods is attributed to various levels of input lattice intensity. We observe more pronounced localization for one of the methods. Localization lengths differ along different directions, due to the crystal and lattice anisotropy. We analyze localization effects comparing uniform and on-site probe beam excitation positions and different probe beam widths.", publisher = "Optical Soc Amer, Washington", journal = "Optics Express", title = "Numerical methods for generation and characterization of disordered aperiodic photonic lattices", pages = "7224-7210", number = "5", volume = "30", doi = "10.1364/OE.447572" }
Timotijević, D., Vasiljević, J. M.,& Jović-Savić, D. M.. (2022). Numerical methods for generation and characterization of disordered aperiodic photonic lattices. in Optics Express Optical Soc Amer, Washington., 30(5), 7210-7224. https://doi.org/10.1364/OE.447572
Timotijević D, Vasiljević JM, Jović-Savić DM. Numerical methods for generation and characterization of disordered aperiodic photonic lattices. in Optics Express. 2022;30(5):7210-7224. doi:10.1364/OE.447572 .
Timotijević, Dejan, Vasiljević, Jadranka M., Jović-Savić, Dragana M., "Numerical methods for generation and characterization of disordered aperiodic photonic lattices" in Optics Express, 30, no. 5 (2022):7210-7224, https://doi.org/10.1364/OE.447572 . .