Exploring, tailoring, and traversing the solution landscape of a phase-shaped CARS process

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Rhijn van, Alexander C.W. and Offerhaus, Herman L. and Walle van der, Peter and Herek, Jennifer L. and Jafarpour, Aliakbar (2010) Exploring, tailoring, and traversing the solution landscape of a phase-shaped CARS process. Optics Express, 18 (3). pp. 2695-2709. ISSN 1094-4087

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Abstract:Pulse shaping techniques are used to improve the selectivity of broadband CARS experiments, and to reject the overwhelming background. Knowledge about the fitness landscape and the capability of tailoring it is crucial for both fundamental insight and performing an efficient optimization of phase shapes. We use an evolutionary algorithm to find the optimal spectral phase of the broadband pump and probe beams in a background-suppressed shaped CARS process. We then investigate the shapes, symmetries, and topologies of the landscape contour lines around the optimal solution and also around the point corresponding to zero phase. We demonstrate the significance of the employed phase bases in achieving convex contour lines, suppressed local optima, and high optimization fitness with a few (and even a single) optimization parameter.
Item Type:Article
Copyright:© Copyright 2010 Optical Society of America
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/72438
Official URL:http://dx.doi.org/10.1364/OE.18.002695
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