The Fourier Optical Analysis Of Aberrations In Focused Laser Beams

L Montgomery Smith; Dennis R Keefer

doi:10.1117/12.939579

19 December 1986 The Fourier Optical Analysis Of Aberrations In Focused Laser Beams

L Montgomery Smith, Dennis R Keefer

Proceedings Volume 0679, Current Developments in Optical Engineering and Diffraction Phenomena; (1986) https://doi.org/10.1117/12.939579
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

Methods are presented for calculating the radiation intensity in the focal region resulting from the focusing of a laser beam by a spherical surface lens. An approach based upon Fourier optics is employed to include the effects of aberrations as well as diffraction and interference, and digital signal processing techniques are used to speed the calculations. Calculated results are displayed on a digital image processor to aid in visual interpretation. Sample calculations are presented for intensity fields in the transverse and meridional planes of the focal region for circular, gaussian and annular laser beams incident on the lens perpendicularly and at small oblique angles.

Citation Download Citation

L Montgomery Smith and Dennis R Keefer "The Fourier Optical Analysis Of Aberrations In Focused Laser Beams", Proc. SPIE 0679, Current Developments in Optical Engineering and Diffraction Phenomena, (19 December 1986); https://doi.org/10.1117/12.939579

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