Nanocomposite photopolymers doped with nanoparticles for volume holographic recording

Tomita, Yasuo; Endoh, Yutaka; Suzuki, Naoaki; Furushima, Kouji

doi:10.1117/12.707752

Cited by 4 publications

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“…On the other hand, an NPC system includes photo-insensitive nanoparticles that are much larger than a reactive monomer molecule. Nevertheless, it was found that observed grating buildup dynamics of NPCs could be qualitatively explained by means of Karpov et al’s phenomenological model [ 118 ]. However, in order to explain various experimental observations (e.g.…”

Section: Holographic Grating Formation and Grating Characterizationmentioning

confidence: 99%

“…Such an ideal case of a sinusoidal refractive index profile may not be usually realized for photopolymer materials including NPCs (see, e.g. Figure 5 ) since the profile is strongly dependent on the ratio of monomer diffusion to polymerization rates [ 118 , 126 ]. Nevertheless, it would be a good approximation to consider only the two lowest order Fourier components ( ) since a first-order diffracted signal from a volume grating is still the main contribution and comes from diffraction by recorded in NPCs.…”

Section: Holographic Grating Formation and Grating Characterizationmentioning

confidence: 99%

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Photopolymerizable nanocomposite photonic materials and their holographic applications in light and neutron optics

Tomita

Hata

Momose

et al. 2016

Journal of Modern Optics

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We present an overview of recent investigations of photopolymerizable nanocomposite photonic materials in which, thanks to their high degree of material selectivity, recorded volume gratings possess high refractive index modulation amplitude and high mechanical/thermal stability at the same time, providing versatile applications in light and neutron optics. We discuss the mechanism of grating formation in holographically exposed nanocomposite materials, based on a model of the photopolymerization-driven mutual diffusion of monomer and nanoparticles. Experimental inspection of the recorded grating’s morphology by various physicochemical and optical methods is described. We then outline the holographic recording properties of volume gratings recorded in photopolymerizable nanocomposite materials consisting of inorganic/organic nanoparticles and monomers having various photopolymerization mechanisms. Finally, we show two examples of our holographic applications, holographic digital data storage and slow-neutron beam control.

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Section: Holographic Grating Formation and Grating Characterizationmentioning

confidence: 99%

Section: Holographic Grating Formation and Grating Characterizationmentioning

confidence: 99%

Photopolymerizable nanocomposite photonic materials and their holographic applications in light and neutron optics

Tomita

Hata

Momose

et al. 2016

Journal of Modern Optics

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“…In recent decades, the interactions between nanoparticles and polymers have been of great interest in both research and industrial applications, including water treatment, 1,2 nanoparticle printing, 3 and nanocomposite polymers 4,5 /gels. 6–8 Studies have shown that nanoparticles in polymer solutions can display various phase behaviors depending on their physicochemical interactions and the environment ( e.g.…”

Section: Introductionmentioning

confidence: 99%

Phase behavior of colloidal nanoparticles and their enhancement effect on the rheological properties of polymer solutions and gels

Yang,

Ge,

et al. 2024

RSC Adv.

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Photothermal Characterization of Thermochromic Materials for Tunable Thermal Devices

et al. 2014

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A detailed infrared study of the semiconductor-to-metal transition (SMT) in a vanadium dioxide (VO2) film deposited on a silicon wafer is presented. The (VO2) phase transition is studied in the mid-infrared (MIR) region by analyzing the transmittance and the reflectance measurements, and the calculated emissivity. The temperature behavior of the emissivity during the SMT puts into evidence the phenomenon of the anomalous absorption in (VO2) which has been explained by applying the Maxwell-Garnett effective medium approximation theory, together with a strong hysteresis phenomenon, both useful to design tunable thermal devices. Photothermal radiometry has been applied in order to study the changes in the modulated emissivity induced by a laser. Experimental results show how the use of these techniques represent a good tool for a quantitative measurement of the optothermal properties of vanadium dioxide-based structure

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Nanocomposite photopolymers doped with nanoparticles for volume holographic recording

Cited by 4 publications

References 0 publications

Photopolymerizable nanocomposite photonic materials and their holographic applications in light and neutron optics

Photopolymerizable nanocomposite photonic materials and their holographic applications in light and neutron optics

Phase behavior of colloidal nanoparticles and their enhancement effect on the rheological properties of polymer solutions and gels

Photothermal Characterization of Thermochromic Materials for Tunable Thermal Devices

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