We demonstrate experimentally and computationally an intricate cavity size dependence of the anomalous near-infrared mode spectrum of an ordinary optical resonator that is combined with a ZnO:Ga-based hyperbolic metamaterial (HMM). Specifically, we reveal the existence of a resonance in subwavelength-sized cavities and demonstrate control over the first-order cavity mode dispersion. We elaborate that these effects arise due to the HMM combining the mode dispersions of purely metallic and purely dielectric cavity cores into a distinct intermediate regime. By tailoring the HMM fill factor, this unique dispersion of a subwavelength resonator can be freely tuned between these two limiting cases.

中文翻译：

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具有定制双曲线超材料的近红外亚波长谐振器的色散控制。

我们通过实验和计算证明了普通光学谐振器与基于ZnO：Ga的双曲线超材料（HMM）相结合的异常近红外模式光谱的复杂腔体尺寸依赖性。具体来说，我们揭示了在亚波长大小的腔中存在共振，并证明了对一阶腔模色散的控制。我们详细说明了这些影响是由于HMM将纯金属腔体芯和纯介电腔芯的模式色散组合到一个独特的中间状态而产生的。通过调整HMM填充因子，可以在这两种极限情况之间自由调整亚波长谐振器的这种独特色散。