Diffusion study in tailored gratings recorded in photopolymer glass with high refractive index species | Zendy

Óscar Martínez-Matos | Zendy; M. L. Calvo | Zendy; José A. Rodrigo | Zendy; Pavel Cheben | Zendy; Francisco del Monte | Zendy

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Diffusion study in tailored gratings recorded in photopolymer glass with high refractive index species

Author(s) -

Óscar Martínez-Matos,

M. L. Calvo,

José A. Rodrigo,

Pavel Cheben,

Francisco del Monte

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2794792

Subject(s) - diffraction efficiency , materials science , refractive index , diffusion , holography , optics , diffraction , photopolymer , diffraction grating , optoelectronics , spatial frequency , grating , polymer , composite material , monomer , physics , thermodynamics

We report results on the temporal evolution of the diffraction efficiency of volume holographic gratings recorded in a photopolymer glass incorporating Zr-based high refractive index species (HRIS) at molecular level. We record high spatial frequency gratings in this material with diffraction efficiencies near 100%. A two-component diffusion model is introduced for the evolution of refractive index modulation in darkness. Diffusion parameters for the Zr-based HRIS and monomer components have been determined. Codirectional diffusion of both components is demonstrated. The results show the feasibility for tailoring in this photomaterial holographic gratings with high diffraction efficiency over a wide range of spatial frequencies. (C) 2007 American Institute of Physics

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