Diffraction characteristics of a fresnel zone plate illuminated by 10 fs laser pulses

Hai Feng Zhang, Jian Chao Li, David W. Doerr, Dennis R. Alexander

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Results of experimental and theoretical work performed to compare diffraction patterns and focal distributions of a Fresnel zone plate illuminated by ultrashort 10 fs pulsed and cw laser beams are presented. It is shown that the foci intensities of 10 fs pulses are considerably lower than those of cw beams while the focal widths in the axial and radial directions are broadened. Calculations also indicate the spectral modulation along the center of the diffraction patterns. These phenomena are explained by the coherent superposition of the composing frequency content.

Original languageEnglish (US)
Pages (from-to)8541-8546
Number of pages6
JournalApplied optics
Volume45
Issue number33
DOIs
StatePublished - Nov 20 2006

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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