Spatial Light Modulators Using Nonlinear Organic Photonic Crystal

使用非线性有机光子晶体的空间光调制器

• 批准号: 12450025
• 负责人: YATAGAI Toyohiko
• 金额: $ 8.96万
• 依托单位: University of Tsukuba, Institute of Applied Physics
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12450025/
• 关键词: Soatial Light Modulator; Nonlinear Organic Materials; Photonic Crystals; Azo Benzen Polymers; フォトニッククリソスタル

Spatial light modulators are designed for optical information processing and display. The use of photonic crystal is proposed to increase its optical nonlinearity for light modulation. We have two types modulation devices are proposed and investigated. First one is a spatial light modulator consisting of 1-D photonic crystal structured nonlinear materials. Azo dye disperse red 1 (DR1) doped poly-methyl-methacrylate (PMMA) is used as a polymeric material. Modulation of more than 1 0 MHz can be realized in electrical driving modes. Optical modulation is under investigation. Second one is an optical modulation device based on a snrface relief grating(SRG). A side-chain type azo polymer, such as Poly(orange Tom-1 isophoronediisocyanate), is spin coated on a Pyrex glass. SRG is fabricated by irradiation of interference fringes. The diffraction efficiency of the grating is dramatically increased by corona discharge. The relief depth of the SRG as measured with an atomic-force microscope also increases. The increase in diffraction efficiency is independent of the writing polarization. Some types of holograms, Fresnel and Fourier Transform holograms, are recorded on the SRGs.

空间光调制器是为光信息处理和显示而设计的。提出利用光子晶体增加光调制的光学非线性。我们提出并研究了两种类型的调制器件。第一种是由一维光子晶体结构非线性材料构成的空间光调制器。采用偶氮染料分散红1 （DR1）掺杂聚甲基丙烯酸甲酯（PMMA）作为高分子材料。在电驱动模式下可以实现超过10mhz的调制。光调制正在调查中。第二种是基于表面浮雕光栅（SRG）的光调制装置。侧链型偶氮聚合物，如聚（橙汤姆-1异膦二异氰酸酯），被自旋涂在耐热玻璃上。采用干涉条纹辐照制备SRG。电晕放电能显著提高光栅的衍射效率。用原子力显微镜测量的SRG的起伏深度也增加了。衍射效率的提高与写入偏振无关。一些类型的全息图，菲涅尔和傅立叶变换全息图，被记录在srg上。

项目成果

Y. Yasuno, M. Nakama, Y. Sutoh, M. Itoh, M. Mori, T. Yatagai: "Phase-resolved correlation and its application to analysis of low coherence interferograin"Opt. Lett.. 26 (2). 90-92 (2001)

Y. Yasuno、M. Nakama、Y. Sutoh、M. Itoh、M. Mori、T. Yatagai：“相位分辨相关及其在低相干干扰素分析中的应用”Opt。

Y.Yasuno, M.Nakama, Y.Sutoh, M.Itoh, M.Mori, T.Yatagai: "Phase-resolved correlation and its application to analysis of low coherence interferogram."Opt.Letl.. 26・2. 90-92 (2001)

Y.Yasuno、M.Nakama、Y.Sutoh、M.Itoh、M.Mori、T.Yatagai：“相位分辨相关及其在低相干干涉图分析中的应用”。Opt.Letl.. 26・2。 -92 (2001)

K.Munakata,K.Harada,N.Yoshikwa,M.Itoh,S.Umegaki,T.Yatagai: "Direct fabrication methods of surface relief elecero-optic gratings in azo-polymer films"Opt.Rev.. 6・6. 518-521 (1999)

K. Munakata、K. Harada、N. Yoshikwa、M. Itoh、S. Umegaki、T. Yatagai：“偶氮聚合物薄膜表面浮雕电光光栅的直接制造方法” Opt.Rev.. 6・6。 518-521 (1999)

K.Harada, K.Munakata, Y.Yagai, M.Itoh, S.Umegaki, T.Yatagai: "Design of electrically Addressed light Modulators using one-dimensional photonic crystals with second-order nonlinear polymeric materials"Nonlinear Optics. 24. 139-146 (2000)

K.Harada、K.Munakata、Y.Yagai、M.Itoh、S.Umegaki、T.Yatagai：“使用一维光子晶体和二阶非线性聚合物材料设计电寻址光调制器”非线性光学。

K.Harada, K.Munakata, M.Itoh, T.Yatagai, Y.Honda, S.Umegaki: "High speed light modulation using complex refractive-index changes of electro-optic polymers"Applied Physics Letters. 77. 3683-3685 (2000)

K.Harada、K.Munakata、M.Itoh、T.Yatagai、Y.Honda、S.Umegaki：“利用电光聚合物的复杂折射率变化进行高速光调制”应用物理快报。