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New Findings from Griffith University Describe Advances in Photonics and Nanostructures (A tri-objective Particle Swarm Optimizer for designing line...

June 30, 2014



New Findings from Griffith University Describe Advances in Photonics and Nanostructures (A tri-objective Particle Swarm Optimizer for designing line defect Photonic Crystal Waveguides)

By a News Reporter-Staff News Editor at Clinical Trials Week -- Investigators publish new report on Photonics and Nanostructures. According to news reporting out of Brisbane, Australia, by NewsRx editors, research stated, "This paper proposes a novel tri-objective approach for optimizing the structure of line defect Photonic Crystal Waveguides (PCW). A nature-inspired algorithm called Multi-Objective Particle Swarm Optimization (MOPSO) is employed as the optimizer."

Our news journalists obtained a quote from the research from Griffith University, "The three objectives considered are maximization of group index, maximization of bandwidth, and minimization of Group Velocity Dispersion (GVD). In addition, the optimization process is subject to five constraints in order to guarantee the feasibility of the structures obtained and prevent bad mixing in the final optimized structures. The results show that the tri-objective MOPSO is able to find 20 optimized structures for line defect PCW. The comparative study verifies the significant improvement of the optimized structures compared to current structures. Moreover, post analysis of the results reveals the importance of holes and their possible physical behaviours in line defect PCW."

According to the news editors, the research concluded: "Finally, the implementation considerations and investigations show that the optimized structures are feasible for manufacturing with a resolution of 1 nm."

For more information on this research see: A tri-objective Particle Swarm Optimizer for designing line defect Photonic Crystal Waveguides. Photonics and Nanostructures-Fundamentals and Applications, 2014;12(2):152-163. Photonics and Nanostructures-Fundamentals and Applications can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Photonics and Nanostructures).

Our news journalists report that additional information may be obtained by contacting S.M. Mirjalili, Griffith University, Sch Informat & Commun Technol, Brisbane, Qld 4111, Australia. Additional authors for this research include S. Mirjalili, A. Lewis and K. Abedi.

Keywords for this news article include: Brisbane, Australia and New Zealand, Photonics and Nanostructures

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Source: Clinical Trials Week