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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 29, Iss. 28 — Oct. 1, 1990
  • pp: 4208–4211

Astigmatism together with longitudinal focal shift in off-axis optical systems

E. Cojocaru, V. Draganescu, and N. Herisanu  »View Author Affiliations


Applied Optics, Vol. 29, Issue 28, pp. 4208-4211 (1990)
http://dx.doi.org/10.1364/AO.29.004208


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Abstract

In many laser applications optical systems are employed to focus off-axis beams that only partially fill the system aperture. In this paper analytical expressions that give the position of the diffraction focus, normalized peak intensity, and tolerance conditions for uniform and Gaussian off-axis beams in an optical system which suffers from astigmatism together with longitudinal focal shift aberration are obtained on the basis of diffraction theory. The results are useful for designing focusing systems for use with laser beams.

© 1990 Optical Society of America

History
Original Manuscript: April 1, 1988
Published: October 1, 1990

Citation
E. Cojocaru, V. Draganescu, and N. Herisanu, "Astigmatism together with longitudinal focal shift in off-axis optical systems," Appl. Opt. 29, 4208-4211 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-28-4208

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