Tomita Yasuo, Urano Hiroshi, Fukamizu Taka-aki, Kametani Yasuhiro, Nishimura Naoya, Odoi Keisuke
Opt Lett. 2016 Mar 15;41(6):1281-4. doi: 10.1364/OL.41.001281.
We report on volume holographic recording at a wavelength of 532 nm in photopolymerizable polymer nanocomposites that are incorporated with new hyperbranched polymers (HBPs) acting as transporting organic nanoparticles. Since HBPs possess an ultrahigh index of refraction of 1.82 due to the inclusion of triazine and aromatic ring units, high-contrast transmission volume holographic gratings with refractive index modulation amplitudes as large as 2.2×10(-2) are recorded. This value enables us to realize a 10 μm thick transmission volume grating with the diffraction efficiency near 100% in the green.
我们报道了在光聚合聚合物纳米复合材料中，于波长532nm下进行的体全息记录，该复合材料中掺入了新型超支化聚合物（HBP）作为传输有机纳米颗粒。由于HBP因包含三嗪和芳环单元而具有1.82的超高折射率，因此记录了折射率调制幅度高达2.2×10⁻²的高对比度透射体全息光栅。该值使我们能够在绿色区域实现厚度为10μm的透射体光栅，其衍射效率接近100%。
