Limited diffraction beams and their applications on signal processing

Limited diffraction beams such as Bessel beams and X waves have been studied recently. These beams have many potential applications in medical imaging, tissue identification, blood flow velocity vector estimation, nondestructive evaluation of industrial materials, optical communications, and other physics related areas such as electromagnetics and optics. In this talk, fundamentals of limited diffraction beams will be presented. Results of applications of X wave theory on high‐frame rate medical imaging will be shown. Applications of these beams in other areas, especially, in signal processing will be discussed. [This work was supported in part by grant HL 60301 from the National Institutes of Health.]