Abstract
A novel class of random media with designed correlation functions are introduced. When light waves are scattered by this kind of media, the spectral density distributions of the scattered field present concentric rings-like profiles. By adjusting different parameters of the media, the number and the size of concentric rings can be modulated properly. Besides, it is found that the spectral density function of the scattered field and the non-negative definiteness function of the media belong to the same kind of functions. Our results have potential applications in optical trapping and particle manipulation.
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