[2] ZOU Chang-ling, DONG Chun-hua, CUI Jin-ming, et al. Whispering gallery mode optical microresonators: fundamentals and applications［J］. Scientia Sinica Physica, Mechanica & Astronomica, 2012, 42(11): 1155-1175.

[3] ARNOLD S, KHOSHSIMA M, TERAOKA I, et al. Shift of whispering-gallery modes in microspheres by protein adsorption［J］. Optics Letters, 2003, 28(4): 272-274.

[4] VOLLMER F, ARNOLD S, KENG D. Single virus detection from reactive shift of whispering gallery mode［J］. Proceedings of the National Academy of Sciences, 2008, 105(52): 20701-20704.

[5] ARMANI A M, KULKARNI R P, FRASER S E, et al. Label-free single-molecule detection with optical microcavities［J］. Science, 2007, 317(5839): 783-787.

[6] IQBAL M, GLESON M, SPAUGH B, et al. Label-free biosensor arrays based on silicon ring resonators and high speed optical scanning instrμmentation［J］. IEEE Journal, 2010, 16(3): 654-661.

[7] CHAO C Y, GUO L J. Biochemical sensors based on polymer microrings with sharp asymmetrical resonance［J］. Applied Physics Letters, 2004, 83(8): 1527-1529.

[8] YEGRAYAN S, ROMAN W, LU H, et al. On-chip integration of microfluidic channels with ultra-high Q silicon microdisk resonators for lab-on-a-chip sensing applications［C］. IEEE LEOS Annual Meeting Conference Proceedings, Lake Buena Vista, 2007, 50-51.

[9] KIPPENBERG T J, VAHALA K J. Demonstration of high-Q microdisk resonators: fabrication and nonlinear properties［C］. Conference on Lasers and Electro-Optics of OSA, America, 2007, CFH5.

[10] ARMANI D K, KIPPENBERG T J, et al. Ultra-high-Q toroid microcavity on a chip［J］. Nature, 2003, 421(6926): 925-928.

[12] JIANG Jun-feng, LIU Tie-gen, LI Hai-wei, et al. Review on label-free optical bio-sensing technology based on whisper-gallery-mode［J］. Spectroscopy and Spectral Analysis. 2010, 30(11): 3076-3080.

[13] NCKEL J U, STONE A D, CHEN G, et al. Directional emission from asymmetric resonant cavities［J］. Optics Letters, 1996, 21(19): 1609-1611.

[14] FANG W, YAMILOV A, CAO H. Analysis of high-quality modes in open chaotic microcavities［J］. Physical Review A, 2005, 72(2): 023815.

[15] APALKOV V M, RAIKH M E. Directional emission from a microdisk resonator with a linear defect［J］. Physical Review B, 2004, 70(19): 195317.

[16] DEYCH L, OSTROWSKI M, YI Y. Defect-induced whispering gallery mode resonances in optical microdisk resonators［J］. Optics Letters, 2011, 36(16): 3154-3156.