Analysis and fabrication of antireflective coating for photovoltaics based on a photonic-crystal concept and generated by evolutionary optimization

Abstract

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Discrete global optimization algorithms for the inverse design of silicon photonics devices

“…However, our results show that discrete structures can be particularly efficient. We underline that in multilayered structures it has been proven that the best structures present a maximum index contrast, something which is found in parametric optimization and in particularly high quality solutions [35,7,36].…”

Numerical study of temperature and pressure effect on one dimensional random photonic crystal used as biosensors in the detection of breast cancer cells

“…In this paper, the DE algorithm is used to obtain the optimal random thickness for the structure. This algorithm evolves and generates a new population on the basis of the current population iteratively [36][37][38][39]. The upper and lower boundaries for the thickness of the layers have been forced to produce the near-optimal solution.…”

Inverse design of cavities for Bloch Surface Waves interfaced to integrated waveguides

“…Gradient-free methods such as swarm or evolutionary optimization rely on extensive sampling of the solution space, which means doing many numerical simulations [28,57,34,38]. These methods can perform very well when gradients are not unavailable (e.g., for discrete optimization problems), but generally need to sample the objective function more often than gradientbased methods simply due to having less information about the objective function.…”

“…Only with such strategies, it is possible to identify feasible designs that serve a well-defined purpose while fully respecting the constraints imposed by the limited index contrast. While a large variety of different methodologies exist to solve the inverse problem [25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42], we exploit topology optimization here.…”