Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1533762 | Optics Communications | 2015 | 5 Pages |
Abstract
A micro-system including a silica micro-tube (inner diameterâ6.2 µm) and dye-doped microspheres (diameterâ6 µm) was pumped by a 532 nm laser. The whispering gallery modes (WGMs) of fluorescence resonance were observed. Free Spectral Range (FSR) of single-sphere with diameters of 40 μm was 3.1 nm and with diameters of 6 μm was 5.4 nm. Two size-matched microspheres were coupled using a bi-sphere micro-system. Resonances from each sphere's evanescent field were coupled, which leads to resonance splitting. The measured resonance splitting in the spectra of the two coupled spheres is about âλâ0.8 nm. The scheme would be a promising component in future micro-photonic devices.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hanyang Li, Jin Li, Sue Hao, Liangsheng Qiang, Yundong Zhang,