Optical beams: White light takes shape

Pascal Fischer, Ewan M. Wright, Tom Brown, Wilson Sibbett, Jill E. Morris, Carlos López-Mariscal, Antonia E. Carruthers, Kishan Dholakia

Research output: Contribution to specialist publicationArticle


The generation of non-diffracting light fields using broadband and incoherent light sources have made important impact in physics. The white Bessel light modes are made from laser diodes operating below threshold, supercontinuum light sources and halogen bulbs. The superposition of the conical wave-vectors arising from passage through the axicon and the inherent absence of chromatic aberration results in a pure focal line of white light. White light sources are used in a wide variety of applications, including imaging using optical coherence tomography. It is believed that exploiting the coherence properties of light in combination with sculpting the wavefronts will lead to new innovations.

Original languageEnglish (US)
Number of pages1
Specialist publicationOptics and Photonics News
StatePublished - Dec 2006


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Fischer, P., Wright, E. M., Brown, T., Sibbett, W., Morris, J. E., López-Mariscal, C., Carruthers, A. E., & Dholakia, K. (2006). Optical beams: White light takes shape. Optics and Photonics News, 17(12).