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Applied Optics

Applied Optics


  • Vol. 39, Iss. 29 — Oct. 10, 2000
  • pp: 5273–5279

Phase function encoding of diffractive structures

Andreas Schilling and Hans Peter Herzig  »View Author Affiliations

Applied Optics, Vol. 39, Issue 29, pp. 5273-5279 (2000)

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We analyzed the direct sampling (DS) method for diffractive lens encoding, using exact electromagnetic diffraction theory. In addition to previously published research [Pure Appl. Opt. 7, 565 (1998)] we present what we believe to be new results for TM polarization. We found that the validity of the scalar-based DS method is even more extended for TM than for TE polarization. Additionally, we fabricated and characterized DS-encoded blazed gratings and found good agreement between the experimental and theoretical diffraction efficiencies. We analyzed quantitatively the influence of the encoding schemes DS and analytic quantization (AQ) on the quality of the focal spot. We also investigated the focal spot sizes (FWHM) and the Strehl ratios of the DS- and the AQ-encoded cylindrical lenses.

© 2000 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1380) Diffraction and gratings : Binary optics
(050.1970) Diffraction and gratings : Diffractive optics

Original Manuscript: March 30, 2000
Revised Manuscript: July 7, 2000
Published: October 10, 2000

Andreas Schilling and Hans Peter Herzig, "Phase function encoding of diffractive structures," Appl. Opt. 39, 5273-5279 (2000)

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