Abstract
Scattering optimization is a challenging engineering problem with an extensive list of potential applications. For some practical applications, the reflectance of the photonic cluster should be variable from minimal to maximal values. The theoretical investigation of such problem is extremely difficult due to multiple interactions between particles in the cluster. In this paper, the optimization of the light scattered by the photonic cluster made of small particles is studied with the help of the special optimization algorithm and the local perturbation method. It was shown that the photonic cluster can be transformed in such a way that its reflectance will be increased or decreased by several orders of magnitude for selected wavelength and direction.
Highlights
Electromagnetic wave is known as the fastest carrier of energy and information, and this property makes light indispensable for communications, warfare, and fundamental research
In Microelectromechanical systems (MEMSs), mirrors are the dynamical elements, and they are mechanically moved to deflect the light to different directions
It can be done by using nonlinear effects or by moving particles with different refractive index in the medium
Summary
Electromagnetic wave is known as the fastest carrier of energy and information, and this property makes light indispensable for communications, warfare, and fundamental research. In MEMS, mirrors are the dynamical elements, and they are mechanically moved to deflect the light to different directions Another way of light manipulation is via dynamical change of the refractive index of the medium. The repositioning of the particles (e.g., in the photonic cluster) is much more effective way to locally change the refractive index of the medium, and there are several possible ways to do so. It was demonstrated, for example, that self-assembly and holographic optical trapping allow to create the predefined photonic structures (see the works [5, 6] and references therein). International Journal of Optics are presented in the paper, and they show that the scattering by the cluster can be increased or decreased by several orders of magnitude for selected wavelength and direction
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