Erratum: “Simple largely tunable optical microcavity [Appl. Phys. Lett. 89, 081118 (2006)]

We have determined a calibration error in the diameter measurements reported in Ref. 1. The diameter of the microdroplet discussed in Fig. 2 a is corrected to 8 μm. Data points reported in Fig. 3 are also changed as a result of this correction. Figure 3 is now corrected to Fig. 1 in this erratum where the dashed line represents the expected dependence for ideal water microspheres in air. From this figure, it is no longer possible to conclude that there is a considerable deviation between the observed free spectral ranges FSRs and those predicted from ideal water microspheres. Hence we retract the statement that the deviation of the shape of a microdroplet standing on a superhydrophobic surface from an ideal microsphere leads to a difference between the measured FSRs and those predicted from ideal water microspheres in air. All other conclusions drawn in Ref. 1 remain unaffected by this correction.