光子学报, 2019, 48 (11): 1148021, 网络出版: 2019-12-10
单个回音壁微腔中Fano共振现象的观测
Observation of Fano Resonance in One Whispering-gallery-mode Microresonator
回音壁模式 Fano共振 电磁诱导透明 光学谐振器 传输谱线 光纤 香肠型微腔 Whispering-gallery mode Fano resonance Electromagnetically induced transparency Optical resonator Transmission spectrum Optical fiber Sausage-like microresonator
摘要
实验研究了香肠状回音壁光学微腔,测量了单个微腔的光学传输谱线.实验结果表明,当从两端拉伸香肠状微腔的时候,观测到的光学模式的共振波长会随着拉伸量的增加而减小,而且不同模式的共振波长减小的速度存在差异.通过拉伸香肠状微腔的方法,实验观察到了单个香肠状微腔中的Fano共振现象.另外,实验上也观测到了与Fano共振现象相关的类电磁诱导透明现象。实验所涉及到的回音壁模式的品质因子高达108.
Abstract
A sausage-like whispering-gallery-mode microresonator was experimentally investigated, whose optical transmission spectrum is measured. The experimental results show that when the sausage-like microresonator is stretched from its two ends, the resonance wavelengths of the optical modes will decrease, and the speeds of the decrease of the resonance wavelengths of different modes are different. By stretching the sausage-like microresonator, the experimental observation of Fano resonance phenomenon has been achieved. In addition, the related electromagnetically induced transparency-like phenomenon has also been observed in experiment. The quality factor of the whispering-gallery mode involved in the experiment can be as high as 108.
郭舒婷, 陈敏诚, 张宇宏, 吴柳乐, 叶明勇, 林秀敏. 单个回音壁微腔中Fano共振现象的观测[J]. 光子学报, 2019, 48(11): 1148021. GUO Shu-ting, CHEN Min-cheng, ZHANG Yu-hong, WU Liu-le, YE Ming-yong, LIN Xiu-min. Observation of Fano Resonance in One Whispering-gallery-mode Microresonator[J]. ACTA PHOTONICA SINICA, 2019, 48(11): 1148021.