A fiber taper can evanescently couple to whispering gallery modes (WGMs) in a planar silica microdisk for observing the optical properties of the microdisk cavity.

• 使用光纤锥可以通过其产生的倏逝场，来耦合微盘腔中的回音壁模式，从而获得对微盘腔光学性质的考察。