Effect of bubble deformation on readout response in a third-generation super-resolution near-field structure disk

The influence of recorded bubble deformation in a third-generation super-resolution near-field structure (super-RENS) disk on the readout property of the disk is studied with a repetitive Z-scan method. The results indicate that the optical response on transmittance and reflectance are related to the shape and size of the bubble. The change in bubble size before and after the repetitive Z-scan is observed by an optical microscope, and several bubbles corresponding to different repetitive Z-scan order of time are examined by an atomic force microscope (AFM). The microscope observations and AFM analyses are in good agreement with the results of the repetitive Z-scan experiment.