Dr Graham McDonald G.S.McDonald@salford.ac.uk
Associate Professor/Reader
Dr Graham McDonald G.S.McDonald@salford.ac.uk
Associate Professor/Reader
Dr James Christian J.Christian@salford.ac.uk
Lecturer
JG Huang
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.
McDonald, G., Christian, J., & Huang, J. (2008, September). Wide class of new fractal light sources [Invited plenary paper]. Presented at Advanced Optoelectronics and Lasers (CAOL), 2010 International Conference, Alushta, Crimea, Ukraine
Presentation Conference Type | Other |
---|---|
Conference Name | Advanced Optoelectronics and Lasers (CAOL), 2010 International Conference |
Conference Location | Alushta, Crimea, Ukraine |
Start Date | Sep 29, 2008 |
End Date | Oct 4, 2008 |
Publication Date | Sep 29, 2008 |
Deposit Date | Oct 14, 2011 |
Publicly Available Date | Apr 5, 2016 |
Publisher URL | http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4671934 |
Additional Information | Event Type : Conference |
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