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We present a novel method to synthesize non-trivial speckles that can enablesuperresolving second-order correlation imaging. The speckles acquire a uniqueanti-correlation in the spatial intensity fluctuation by introducing the bluenoise spectrum to the input light fields through amplitude modulation.Illuminating objects with the blue noise speckle patterns can lead to asub-diffraction limit imaging system with a resolution more than three timeshigher than first-order imaging, which is comparable to the resolving power ofninth order correlation imaging with thermal light. Our method opens a newroute towards non-trivial speckle generation by tailoring amplitudes of theinput light fields and provides a versatile scheme for constructingsuperresolving imaging and microscopy systems without invoking complicatedhigher-order correlations.

Superresolving second-order correlation imaging using synthesized colored noise speckles