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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 14, Iss. 6 — Jun. 1, 1997
  • pp: 1268–1278

Optical diffraction of focused spots and subwavelength structures

D. S. Marx and D. Psaltis  »View Author Affiliations

JOSA A, Vol. 14, Issue 6, pp. 1268-1278 (1997)

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We have developed a numerical diffraction tool for cases in which the incident field is a focused spot and the diffracting structure is a single structure or an aperiodic surface. Our approach uses the integral formulation to solve Maxwell's equations and is different from previously published methods in its choice of basis function. We compared numerical results with experimental measurements of the far-field intensity for a focused spot incident on an aluminum grating, and the comparison was favorable. Finally, we predict the diffraction behavior of the proposed digital video disk format for the next generation of optical disk. Our analysis shows that the reflected signal for this format has a strong dependence on the polarization of the incident light.

© 1997 Optical Society of America

Original Manuscript: August 9, 1996
Revised Manuscript: December 20, 1996
Manuscript Accepted: December 20, 1996
Published: June 1, 1997

D. S. Marx and D. Psaltis, "Optical diffraction of focused spots and subwavelength structures," J. Opt. Soc. Am. A 14, 1268-1278 (1997)

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