论文标题
环境对中尺度介电球中超级共振的影响
Influence of the Environment on the Effect of Super Resonance in Mesoscale Dielectric Spheres
论文作者
论文摘要
介电中尺度球引起了强烈的兴趣，因为它们有潜力在深度下波长体积下定位光并产生极端的内部磁和/或电场增强功能。最近，我们表明这种粒子可以支持具有巨大场地定位和增强的高阶MIE共振模式。优化内部磁场似乎是增强介质中尺度颗粒中波物质相互作用的关键挑战。但是，介电粒子始终位于某些培养基中，而不是真空。此外，问题是环境介质在超级共振效应中的内部场强度增强。基于MIE理论，我们首次表明环境的存在导致粒子中场强度显着降低。因此，在不考虑环境的情况下，对超呼声效应的研究变得毫无意义。然而，当粒子在空气中而不是真空中时，对于球体的蓝移Mie大小参数会更大的内部磁场增强。
Dielectric mesoscale spheres have aroused strong interest because of their potential to localize light at deep subwavelength volume and to yield extremal internal magnetic and/or electric field enhancements. Recently, we showed that such particle could support high-order Mie resonance modes with giant field localization and enhancement. Optimizing the internal fields appears as a key challenge for enhancing wave matter interactions in dielectric mesoscale particles. However, a dielectric particle is always located in some medium, and not in a vacuum. Moreover, the question is how much the environment medium affects the internal field intensities enhancement in the super-resonance effect. Based on Mie theory we show for the first time that the presence of the environment leads to a significant decrease in the intensity of the field in the particle. Thus, the study of the effect of super-resonance becomes meaningless without taking into account the environment. However, a greater enhancement of the internal field is found for the blue-shifted Mie size parameter of the sphere when the particle, for example, is in air rather than in vacuum.
