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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 21, Iss. 22 — Nov. 15, 1996
  • pp: 1857–1859

Holographic diffraction gratings recording in organically modified silica gels

P. Cheben, T. Belenguer, A. Nuñez, F. del Monte, and D. Levy  »View Author Affiliations


Optics Letters, Vol. 21, Issue 22, pp. 1857-1859 (1996)
http://dx.doi.org/10.1364/OL.21.001857


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Abstract

The silica gel–methyl methacrylate organically modified ceramic is proposed for recording of volume holograms. Both low-spatial-frequency (54 line pairs/mm−1) and high-spatial-frequency (1400 line pairs/mm−1) holographic gratings were successfully recorded in the medium by interference of two coherent beams of 351.1-nm wavelength. High diffraction efficiencies (93%) and extremely low absorption and scattering coefficients were measured during the holographic reconstruction by a 632.8-nm He–Ne beam. The optimum UV recording exposure was ~3 J cm−2. A grating refractive-index modulation amplitude of 1.1 × 10−4 was achieved. Virtually no changes in diffraction efficiency were observed after thermal-heating, light-curing, and long-term-aging experiments.

© 1996 Optical Society of America

History
Original Manuscript: June 3, 1996
Published: November 15, 1996

Citation
P. Cheben, F. del Monte, D. Levy, T. Belenguer, and A. Nuñez, "Holographic diffraction gratings recording in organically modified silica gels," Opt. Lett. 21, 1857-1859 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-22-1857

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