激光与光电子学进展, 2014, 51 (2): 021603, 网络出版: 2014-01-21   

纳米银掺杂的液晶/聚合物全息光栅中的表面等离子体共振

Surface Plasmon Resonance of Holographic Polymer Dispersed Liquid Crystal Grating Doped with Nano-Ag
作者单位
上海理工大学光电信息与计算机工程学院 教育部光学仪器与系统工程研究中心,上海市现代光学系统重点实验室, 上海 200093
摘要
报道了纳米银颗粒的局域表面等离子体共振能显著提高全息聚合物分散液晶 (H-PDLC)光栅的衍射效率。着重分析了球形纳米银颗粒在PDLC中的表面等离子体共振特性,根据Mie理论,模拟计算了球形纳米银颗粒在PDLC材料中的消光光谱并得出了相应的表面等离子体共振峰值,且该值与用光谱仪测得的材料吸收峰值相近。同时,根据准静态近似理论,模拟了球形纳米银颗粒在特定波长的光照射下的球内外电场分布。证明了球形纳米银颗粒在聚合物分散液晶材料中发生表面等离子体共振,当用与共振峰值相近的激光对材料进行曝光时,可以增强液晶与聚合物的相分离过程,所制备的光栅样品结构更加整齐平滑,从而提高了光栅的衍射效率。
Abstract
The effect of localized surface plasmon resonance of Ag nanoparticles on the diffraction efficiency of holographic polymer dispersed liquid crystal grating (H-PDLC) is reported. The surface plasmon resonance characteristic of spherical Ag nanoparticles within the PDLC material is analyzed. According to Mie theory, the extinction spectra of spherical Ag nanoparticles surrounded by PDLC material are simulated and then the resonance wavelength is found in the extinction spectra, which is very similar to the resonance wavelength value measured by spectrometer. In addition, the electric field distribution inside and outside the spherical Ag nanoparticles is simulated according to quasi-static approximation method. It is testified that Ag nanoparticles exhibit surface plasmon resonance in the PDLC material during holographic recording process, thus the phase separation between liquid crystal and polymer is significantly improved and the grating structure is much smoother than the sample without Ag nanoparticles, which greatly increases the diffraction efficiency of H-PDLC grating.
参考文献

[1] 李志远, 李家方. 金属纳米结构表面等离子体共振的调控和利用[J]. 科学通报, 2011, 56(32): 2631-2661.

    Li Zhiyuan, Li Jiafang. Recent progress in engineering and application of surface plasmon resonance in metal nanostructures[J]. Chinese Science Bulletin 2011, 56(32): 2631-2661.

[2] Kadir Aslan, Michael J R Previte, Yongxia Zhang, et al.. Metal-enhanced fluorescence from nanoparticulate zinc films [J]. J Phys Chem C, 2008, 112(47): 18368-18375.

[3] 马文英, 罗 吉, 许诚昕, 等. 金属纳米结构对光谱响应及折射率灵敏度的影响[J]. 光学学报, 2012, 32(12): 1228001.

    Ma Wenying, Luo Ji, Xu Chengxin, et al.. Influence of metal nanostructures on spectral response and sensitivities of refractive index [J]. Acta Optica Sinica, 2012, 32(12): 1228001.

[4] 黄彩进, 陈 成, 王顺文. 纳米光学天线性能研究进展[J]. 激光与光电子学进展, 2012, 49(6): 060005.

    Huang Caijin, Chen Cheng, Wang Shunwen. An introduction to performance of optical nano-antennas [J]. Laser & Optoelectronics Progress, 2012, 49(6): 060005.

[5] 郑 龙, 张 霞, 施 雷, 等. 基于金纳米层的微结构光纤表面等离子体共振传感器[J]. 激光与光电子学进展, 2011, 48(1): 012401.

    Zheng Long, Zhang Xia, Shi Lei, et al.. Surface plasmon resonance sensors based on Au-metalized nanolayer in microstructured optical fibers [J]. Laser & Optoelectronics Progress, 2011, 48(1): 012401.

[6] 黄 茜, 熊绍珍, 赵 颖, 等. 表面等离子激元非线性表面增强拉曼散射效应[J]. 物理学报, 2012, 61(15): 157801.

    Huang Qian, Xiong Shaozhen, Zhao Ying, et al.. Nonlinear phenomenon of surface enhanced raman scattering caused by surface plasmon [J]. Acta Physica Sinica, 2012, 61(15): 157801.

[7] 杨修春, 刘会欣, 李玲玲, 等. 影响贵金属纳米颗粒表面等离子体共振因素评述[J]. 功能材料, 2010, 41(2): 341-345.

    Yang Xiuchun, Liu Huixin, Li Lingling, et al.. Review on influence factors of surface plasmon resonance fornobel metal nanoparticles [J]. J Functional Materials, 2010, 41(2): 341-345.

[8] 李玲玲, 杨修春, 黄 敏, 等. 贵金属纳米颗粒的表面等离子共振研究[J]. 功能材料与器件学报, 2011, 17(1): 114-119.

    Li Lingling, Yang Huixin, Huang Min, et al.. Studies on surface plasmon resonance of noble metallic nanoparticles [J]. J Functional Materials and Devices, 2011, 17(1): 114-119.

[9] 阮圣平, 马 骥, 刘永刚, 等. 新型聚合物分散液晶相位光栅的制备[J]. 光学学报, 2004, 24(3): 369-372.

    Ruan Shengping, Ma Ji, Liu Yonggang, et al.. Preparation of novel polymer dispersed liquid crystal grating [J]. Acta Optica Sinica, 2004, 24(3): 369-372.

[10] 郑继红, 钟阳万, 蔡明荣, 等. 电控聚合物分散液晶变焦全息透镜制作[J]. 光学学报, 2007, 27(6): 1107-1110.

    Zheng Jihong, Zhong Yangwan, Cai Mingrong, et al.. Fabrication of electrical-controlled polymer dispersed liquid crystal switchable-focus holographic lens [J]. Acta Optica Sinica, 2007, 27(6): 1107-1110.

[11] 张梦华, 郑继红, 唐平玉, 等. 纳米银掺杂的高效率全息聚合物分散液晶光栅制备[J]. 光学学报, 2013, 33(1): 0105002.

    Zhang Menghua, Zheng Jihong, Tang Pingyu, et al.. High efficiency nano-silver-doped holographic polymer dispersed liquid crystal grating[J]. Acta Optica Sinica, 2013, 33(1): 0105002.

[12] Mie G. Beitrage zur optik truber medien speziel kolloidaler metallosungen [J]. Ann Phys, 1908, 25(4): 377-445.

[13] S L Westcott, J B Jackson, C Radloff, et al.. Relative contributions to the plasmon line shape of metal nanoshells [J]. Phys Rev B, 2002, 66(15): 155431-155435.

[14] Yanling Liu, Feng Song, Jun Zhang, et al.. Tunable local surface plasmon resonance in liquid-crystal-coated Ag nanoparticles [J]. Phys Lett A, 2013, 377(16): 1199-1204.

王康妮, 郑继红, 桂坤, 张梦华, 郭彩虹, 韦晓鹏. 纳米银掺杂的液晶/聚合物全息光栅中的表面等离子体共振[J]. 激光与光电子学进展, 2014, 51(2): 021603. Wang Kangni, Zheng Jihong, Gui Kun, Zhang Menghua, Guo Caihong, Wei Xiaopeng. Surface Plasmon Resonance of Holographic Polymer Dispersed Liquid Crystal Grating Doped with Nano-Ag[J]. Laser & Optoelectronics Progress, 2014, 51(2): 021603.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!