24 May 2018 Spatial frequency response of nanocomposite holographic gratings
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Abstract
We investigate the spatial frequency response of a volume grating recorded in a ZrO2 nanoparticle-dispersed nanocomposite. We experimentally find that there exists the optimum recording intensity to maximize the saturated refractive index modulation amplitude of a nanocomposite grating recorded at short and long grating spacing. A strong parametric relationship between grating spacing and recording intensity is seen and an increase in the saturated refractive index modulation amplitude at shorter grating spacing (< 0.5 μm)can be obtained by using higher recording intensities than those at longer grating spacing. Such a trend can be qualitatively explained by a phenomenological model used for holographic polymer-dispersed liquid crystal gratings. We also describe another method for the improvement of the high spatial frequency response by co-doping of thiol monomer that acts as a chain-transfer agent.
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Yasuo Tomita, Yasuo Tomita, Toshihiro Nakamura, Toshihiro Nakamura, Agyl F. Rizky, Agyl F. Rizky, Ryota Fujii, Ryota Fujii, Jinxin Guo, Jinxin Guo, } "Spatial frequency response of nanocomposite holographic gratings", Proc. SPIE 10679, Optics, Photonics, and Digital Technologies for Imaging Applications V, 106790U (24 May 2018); doi: 10.1117/12.2312427; https://doi.org/10.1117/12.2312427
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