Resonance excitation of sprit ring resonator by semiconductor quantum dot

我们建立了一种在近红外波段调谐到与半导体量子点相同谐振波长的螺旋环谐振器（SRR）的制备技术。利用原子力显微镜（AFM）探针对衬底进行阳极氧化或电子束光刻等纳米尺度的图形化，我们可以成功地控制衬底上10纳米尺度的量子点团簇的位置，使其接近SRR。与没有SRR结构的量子点相比，SRR结构附近的量子点的发光强度显著增强。我们还开发了一个数值模拟程序来分析量子点和SRR之间的电磁相互作用，并获得了有用的信息来理解实验结果。

We have established a fabrication technique of a sprit ring resonator (SRR) tuned at the same resonance wavelength to that of a semiconductor quantum dot in the near infrared wavelength region. By using the nano-scale patterning with the anodic oxidation of substrate with an AFM probe tip or with the electron beam lithography methods, we can successfully control the position of the quantum-dots cluster with a ten-nanomenter scale near a SRR on the substrate. The significant enhancement of luminescence intensity was observed for the quantum dots near SRR structures compared with the luminescent intensity of the quantum dots without structures. We have also developed a numerical simulation program to analyze the electromagnetic interaction between the quantum dots and SRR and obtained useful information to understand experimental results.