Abstract
We report Fano resonances in a multimode square glass micropillar resonator; the resonances were obtained by using angle-resolved prism coupling. Our experiments reveal characteristically asymmetric line shapes of high-Q resonances and of detuned low-Q resonances in multimode reflection spectra. The asymmetric resonance line shapes evolve for an approximately π phase within a 0.5° range of reflection angles. We model our observed asymmetric multimode resonances by the far-field interference between a light wave that is evanescently coupled with a high-Q mode orbit and a coherent light wave that is refractively coupled with a detuned low-Q mode orbit.
© 2005 Optical Society of America
Full Article | PDF ArticleMore Like This
Ho-Tong Lee and Andrew W. Poon
Opt. Lett. 29(1) 5-7 (2004)
Ying Lu, Jianquan Yao, Xifu Li, and Peng Wang
Opt. Lett. 30(22) 3069-3071 (2005)
Nick K. Hon and Andrew W. Poon
J. Opt. Soc. Am. B 24(8) 1981-1986 (2007)