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Applied Optics

Applied Optics


  • Vol. 43, Iss. 28 — Oct. 1, 2004
  • pp: 5350–5355

Linear focusing by a plane grating with curved grooves

José A. Ferrari, Eugenio Garbusi, and Erna M. Frins  »View Author Affiliations

Applied Optics, Vol. 43, Issue 28, pp. 5350-5355 (2004)

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We study the field diffracted by a plane grating with curved (parabolic) grooves. We will demonstrate that when a monochromatic plane wave is incident on a grating with parabolic grooves the diffracted field has a focal line whose position depends on the curvature radius of the parabolas and the incidence angle of the light onto the grating. The effect described has potential applications in grating-based devices for focusing light without requiring any additional optics.

© 2004 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(230.0230) Optical devices : Optical devices
(300.0300) Spectroscopy : Spectroscopy

Original Manuscript: March 8, 2004
Revised Manuscript: June 15, 2004
Published: October 1, 2004

José A. Ferrari, Eugenio Garbusi, and Erna M. Frins, "Linear focusing by a plane grating with curved grooves," Appl. Opt. 43, 5350-5355 (2004)

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