The diffraction limit of traditional optical device greatly restricts the further development of optical super-resolution systems.It is a great challenge to overcome the diffraction limit at a device level,and achieve label-free far-field superresolution imaging.Optical super-oscillation provides a new way to realize super-resolution since it allows the generation of arbitrary small structures in optical fields in the absence of evanescent waves.The researches of optical super-oscillation and super-oscillat...