Wide class of new fractal light sources [Invited plenary paper]

McDonald, GS ORCID: https://orcid.org/0000-0002-1304-5182, Christian, JM ORCID: https://orcid.org/0000-0003-2742-0569 and Huang, JG 2008, Wide class of new fractal light sources [Invited plenary paper] , in: Advanced Optoelectronics and Lasers (CAOL), 2010 International Conference, 29 Sept - 4 Oct, 2008, Alushta, Crimea, Ukraine.

PDF - Accepted Version
Download (216kB) | Preview


Pattern emergence in Naturepsilas complex systems is mostly attributed to a classic Turing instability. There, a single length-scale becomes dominant and this defines a simple emergent structure (for example, a striped or hexagonal pattern). We have investigated whether a multi-Turing instability may result in another universal type of pattern: fractals. Fractals possess proportional levels of detail across decades of length-scale, and are thus inherently scale-less. Here, we make the first predictions of spontaneous spatial fractal patterns in nonlinear ring cavities. This will include the first reported spatial optical fractals arising from purely-absorptive nonlinearity. Analyses reveal characteristic (multi-Turing) spectral features for both dispersive and absorptive cavities. Simulations verify and quantify the fractal properties of the spontaneously-patterned light. Our findings greatly widen the scope for potential realization and exploitation of fractal light sources. In Nature-inspired device and system architectures, such sources are likely to play a pivotal role in developments.

Item Type: Conference or Workshop Item (Paper)
Themes: Energy
Media, Digital Technology and the Creative Economy
Subjects outside of the University Themes
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title: Advanced Optoelectronics and Lasers, 2008. CAOL 2008. 4th International Conference
Publisher: IEEE Xplore Digital Library
Refereed: Yes
Depositing User: GS McDonald
Date Deposited: 14 Oct 2011 08:17
Last Modified: 28 Aug 2021 19:51
URI: http://usir.salford.ac.uk/id/eprint/18294

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)


Downloads per month over past year