1 福建师范大学 物理与能源学院 福建省量子调控与新能源材料重点实验室，福州 350117
2 福建省半导体光电材料及其高效转换器件协同创新中心，福建 厦门 361005
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.
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 光子学报
2019, 48(11): 1148021
Author Affiliations
Abstract
Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350007, China
It is demonstrated that high-Q (Q～108) bottle microresonators can be fabricated by using a CO2 laser to heat a vertical single-mode fiber with a small weight attached to its lower end. A tunable continuous-wave laser is used to excite whispering-gallery modes in a bottle microresonator through a fiber taper, and a ringing phenomenon is observed. The observed ringing phenomenon is well explained through the numerical solution of a dynamic equation. In addition, an explicit function is given to describe the light field in the resonator, and the theoretical transmission based on the function also agrees very well with the experimental ringing phenomenon.
140.4780 Optical resonators 140.3948 Microcavity devices Chinese Optics Letters
2016, 14(2): 021402
