Diffraction-limited beams and their applications for ultrasonic imaging and tissue characterization

Jian Yu Lu, James F. Greenleaf

Research output: Contribution to journalConference articlepeer-review

50 Scopus citations


Diffraction-limited beams were first discovered by Durnin in 1987. These beams are pencil-like and have very large depth of field. Recently, we have discovered new families of diffraction-limited beams which contain some of the diffraction-limited beams known previously, such as, the plane wave and Durnin's Bessel beams, in addition to an infinite variety of new beams, such as X waves. In this paper, we generalize the new diffraction-limited beams to n-dimensional space, review the recent development of the diffraction-limited beams, and describe their applications to medical ultrasonic imaging, tissue characterization and nondestructive evaluation of materials. Advantages and disadvantages of these beams are discussed and their possible applications to other wave related fields are addressed.

Original languageEnglish (US)
Pages (from-to)92-119
Number of pages28
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Nov 5 1992
EventNew Developments in Ultrasonic Transducers and Transducer Systems 1992 - San Diego, United States
Duration: Jul 22 1992 → …

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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