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研究了一种基于棱镜基底-辅助电介质层-金膜-待测介质四层结构的表面等离子体共振（surface plasmon resonance，SPR）效应激励模型. 采用薄膜光学与波导理论，探索了由辅助电介质层与金膜复合而成共振薄膜对SPR效应的激励机理与调制特性. 借助时域有限差分方法，数值模拟得到辅助电介质层属性与共振能量传输特性关系. 在此基础上，构建了波长调制型棱镜辅助电介质层结构SPR激励系统. 研究结果表明，当待测介质折射率相同时，相较基于棱镜基底-金膜-待测介质三层结构的Kretschmann激励模型，辅助电介质层激励模型共振光谱整体向长波方向偏移且半波宽度出现显著展宽效应. 而当待测介质折射率增大时，辅助电介质层型激励模型的共振光谱不仅会向长波方向偏移，而且折射率响应灵敏度比棱镜Kretschmann三层激励模型高出75%. 因此该模型能够为诸如高灵敏度检测、新型光学滤波与调制器件设计等领域的研究应用提供理论与实践储备.A prism surface plasmon resonance (SPR) incentive model based on the dielectric-aided layer structure is studied. The model consists of four structure layers: prism-dielectric-aided layer-gold-environmental media. According to the thin film optics and waveguide theory, the excited mechanism and modulation characteristic of SPR effect are explored based on resonance composite film composed of dielectric-aided layer and gold film. Numerical simulation is conducted on the relation of layer thickness, film dispersion characteristics and resonance energy transfer by the finite difference time domain method. Thereby, the wavelength modulation prism dielectric-aided layer SPR excitation system is also developed. Results show that with the same refractive index of liquid, the SPR resonance spectrum of dielectric-aided layer incentive model shifts to the longer wavelength region and the resonant halfwave width is wider than the spectrum of common Kretschmann incentive model based on prism-gold-environmental media. With increasing refractive index, the SPR resonance spectrum redshifts, and its sensitity is 75% higher than the common incentive model. The designed model can effectively improve the sensitivity of the prism surface plasmon resonance effect, and in the areas such as high sensitivity detection, new types of optical filter, the modulator and other fields the SPR technology may provide a theoretical and practical basis.
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Keywords:
- prism surface plasmon resonance incentive model /
- dielectric-aided layer /
- sensitivity of refractive index /
- resonance spectrum modulation
[1] Zhao H J 2012 Chin. Phys. B 21 087104
[2] Andreas N 2010 J. Biol. Pharm. Anal. 51 252
[3] Xu X, Ye Z Z, Wu J, Ying Y B 2010 Chinese J. Anal. Chem. 38 1052
[4] Pernites R, Ponnapati R, Felipe M J, Advincula R 2011 Biosens Bioelectron. 26 2766
[5] Jia Z X, Duan X, Lv T T, Guo Y N, Xue W R 2011 Acta Phys. Sin. 60 057301 (in Chinese) [贾智鑫, 段欣, 吕婷婷, 郭亚楠, 薛文瑞 2011 物理学报 60 057301]
[6] Hong X, Guo X B, Fang X, Li K, Ye H 2013 Acta Phys. Sin. 62 178502 (in Chinese) [洪霞, 郭雄彬, 方旭, 李衎, 叶辉 2013 物理学报 62 178502]
[7] Hong X G, Xu W D, Li X G, Zhao C Q, Tang X D 2008 Acta Phys. Sin. 57 6643 (in Chinese) [洪小刚, 徐文东, 李小刚, 赵成强, 唐晓东 2008 物理学报 57 6643]
[8] Sarid D 1981 Phys. Rev. Lett. 47 1927
[9] Quail J C, Rako J G, Simon H J 1983 Opt. Lett. 8 377
[10] Li M Y 2010 MS Thesis (Beijing: Beijing Jiaotong University) (in Chinese) [李敏钰 2010 硕士学位论文 (北京: 北京交通大学)]
[11] Wu L, Chu H S, Koh W S, Li E P 2010 Opt. Exp. 18 14395
[12] Regatos D, Sepúlveda B, Fariña D, Carrascosa L G, Lechuga L M 2011 Opt. Exp. 19 8336
[13] Kretschmann E, Raether H 1968 Z. Naturforsch. A 23 2135
[14] Wijaya E, Lenaerts C, Maricot S, Hastanin J, Habraken S, Vilcot J P, Boukherroub R, Szunerits S 2011 Curr. Opin. Solid State Mater. Sci. 15 208
[15] Maier S A 2007 Plasmonics: fundamentals and applications (Vol.1) (New York: Springer) p44–46
[16] Zhang J T, Gu Z T, Deng C L 2010 Acta Phot. Sin. 39 1216 (in Chinese) [张江涛, 顾铮先, 邓传鲁 2010 光子学报 39 1216]
[17] Li Q B, Wu R X, Yan Y, Sun H L 2013 Chin. Phys. Lett. 30 074208
[18] Shalabney A, Abdulhalim I 2010 Sens. Actuators A: Phys. 159 24
[19] Jiang Y Y, Shi H Y, Zhang Y Q, Hou C F, Sun X D 2007 Chin. Phys. 16 1959
[20] Zayats A V, Smolyaninov I I, Maradudin A A 2005 Phys. Reports 408 131
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[1] Zhao H J 2012 Chin. Phys. B 21 087104
[2] Andreas N 2010 J. Biol. Pharm. Anal. 51 252
[3] Xu X, Ye Z Z, Wu J, Ying Y B 2010 Chinese J. Anal. Chem. 38 1052
[4] Pernites R, Ponnapati R, Felipe M J, Advincula R 2011 Biosens Bioelectron. 26 2766
[5] Jia Z X, Duan X, Lv T T, Guo Y N, Xue W R 2011 Acta Phys. Sin. 60 057301 (in Chinese) [贾智鑫, 段欣, 吕婷婷, 郭亚楠, 薛文瑞 2011 物理学报 60 057301]
[6] Hong X, Guo X B, Fang X, Li K, Ye H 2013 Acta Phys. Sin. 62 178502 (in Chinese) [洪霞, 郭雄彬, 方旭, 李衎, 叶辉 2013 物理学报 62 178502]
[7] Hong X G, Xu W D, Li X G, Zhao C Q, Tang X D 2008 Acta Phys. Sin. 57 6643 (in Chinese) [洪小刚, 徐文东, 李小刚, 赵成强, 唐晓东 2008 物理学报 57 6643]
[8] Sarid D 1981 Phys. Rev. Lett. 47 1927
[9] Quail J C, Rako J G, Simon H J 1983 Opt. Lett. 8 377
[10] Li M Y 2010 MS Thesis (Beijing: Beijing Jiaotong University) (in Chinese) [李敏钰 2010 硕士学位论文 (北京: 北京交通大学)]
[11] Wu L, Chu H S, Koh W S, Li E P 2010 Opt. Exp. 18 14395
[12] Regatos D, Sepúlveda B, Fariña D, Carrascosa L G, Lechuga L M 2011 Opt. Exp. 19 8336
[13] Kretschmann E, Raether H 1968 Z. Naturforsch. A 23 2135
[14] Wijaya E, Lenaerts C, Maricot S, Hastanin J, Habraken S, Vilcot J P, Boukherroub R, Szunerits S 2011 Curr. Opin. Solid State Mater. Sci. 15 208
[15] Maier S A 2007 Plasmonics: fundamentals and applications (Vol.1) (New York: Springer) p44–46
[16] Zhang J T, Gu Z T, Deng C L 2010 Acta Phot. Sin. 39 1216 (in Chinese) [张江涛, 顾铮先, 邓传鲁 2010 光子学报 39 1216]
[17] Li Q B, Wu R X, Yan Y, Sun H L 2013 Chin. Phys. Lett. 30 074208
[18] Shalabney A, Abdulhalim I 2010 Sens. Actuators A: Phys. 159 24
[19] Jiang Y Y, Shi H Y, Zhang Y Q, Hou C F, Sun X D 2007 Chin. Phys. 16 1959
[20] Zayats A V, Smolyaninov I I, Maradudin A A 2005 Phys. Reports 408 131
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