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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 6 — Mar. 21, 2005
  • pp: 1939–1947

Physical and effective optical thickness of holographic diffraction gratings recorded in photopolymers

S. Gallego, M. Ortuño, C. Neipp, A. Márquez, A. Beléndez, I. Pascual, J. V. Kelly, and J. T. Sheridan  »View Author Affiliations


Optics Express, Vol. 13, Issue 6, pp. 1939-1947 (2005)
http://dx.doi.org/10.1364/OPEX.13.001939


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Abstract

In recent years the interest in thick holographic recording materials for storage applications has increased. In particular, photopolymers are interesting materials for obtaining inexpensive thick dry layers with low noise and high diffraction efficiencies. Nonetheless, as will be demonstrated in this work, the attenuation in depth of light during the recording limits dramatically the effective optical thickness of the material. This effect must be taken into account whenever thick diffraction gratings are recorded in photopolymer materials. In this work the differences between optical and physical thickness are analyzed, applying a method based on the Rigorous Coupled Wave Theory and taking into account the attenuation in depth of the refractive index profile. By doing this the maximum optical thickness that can be achieved can be calculated. When the effective thickness is known, then the real storage capacity of the material can be obtained.

© 2005 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2900) Holography : Optical storage materials
(090.7330) Holography : Volume gratings

ToC Category:
Research Papers

History
Original Manuscript: February 10, 2005
Revised Manuscript: March 4, 2005
Published: March 21, 2005

Citation
S. Gallego, M. Ortuño, C. Neipp, A. Márquez, A. Beléndez, I. Pascual, J. Kelly, and J. Sheridan, "Physical and effective optical thickness of holographic diffraction gratings recorded in photopolymers," Opt. Express 13, 1939-1947 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-6-1939


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References

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