We propose in this paper a convenient way to compress the dense matrix representation of a compact integral operator with a smooth kernel under the Fourier basis. The compression leads to a sparse ...

Combining white light interferometry with Fourier scatterometry provides an optical metrology tool for characterizing subwavelength structures. Valeriano Ferreras Paz and co-workers from Stuttgart ...

But Fourier transforms are the workhorses in many modern fields of science, including data processing, image analysis, optics, communication, astronomy and engineering.