Spatial frequency response of nanocomposite holographic gratings

Yasuo Tomita; Toshihiro Nakamura; Agyl F. Rizky; Ryota Fujii; Jinxin Guo

doi:10.1117/12.2312427

24 May 2018 Spatial frequency response of nanocomposite holographic gratings

Yasuo Tomita, Toshihiro Nakamura, Agyl F. Rizky, Ryota Fujii, Jinxin Guo

Proceedings Volume 10679, Optics, Photonics, and Digital Technologies for Imaging Applications V; 106790U (2018) https://doi.org/10.1117/12.2312427
Event: SPIE Photonics Europe, 2018, Strasbourg, France

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.

Citation Download Citation

Yasuo Tomita, Toshihiro Nakamura, Agyl F. Rizky, Ryota Fujii, and 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); https://doi.org/10.1117/12.2312427

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