中国物理B ›› 2017, Vol. 26 ›› Issue (5): 57302-057302.doi: 10.1088/1674-1056/26/5/057302

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Dielectric loaded surface plasmon polariton properties of the Al2O3-Al nanostructure

Jie Yao(姚洁), Qi Wei(魏琦), Qing-Yu Ma(马青玉), Da-Jian Wu(吴大建)   

  1. Jiangsu Key Laboratory on Opto-Electronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
  • 收稿日期:2017-01-03 修回日期:2017-02-09 出版日期:2017-05-05 发布日期:2017-05-05
  • 通讯作者: Da-Jian Wu E-mail:wudajian@njnu.edu.cn
  • 基金资助:

    Project by the National Natural Science Foundation of China (Grant Nos. 11674175, 51120125001, and 11474166), the Major Project of Natural Science Research for Colleges and Universities in Jiangsu Province, China (Grant No. 15KJA140002), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20150562), and the Priority Academic Program Development of Jiangsu Provincial Higher Education Institutions, China.

Dielectric loaded surface plasmon polariton properties of the Al2O3-Al nanostructure

Jie Yao(姚洁), Qi Wei(魏琦), Qing-Yu Ma(马青玉), Da-Jian Wu(吴大建)   

  1. Jiangsu Key Laboratory on Opto-Electronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
  • Received:2017-01-03 Revised:2017-02-09 Online:2017-05-05 Published:2017-05-05
  • Contact: Da-Jian Wu E-mail:wudajian@njnu.edu.cn
  • Supported by:

    Project by the National Natural Science Foundation of China (Grant Nos. 11674175, 51120125001, and 11474166), the Major Project of Natural Science Research for Colleges and Universities in Jiangsu Province, China (Grant No. 15KJA140002), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20150562), and the Priority Academic Program Development of Jiangsu Provincial Higher Education Institutions, China.

摘要:

Surface plasmons (SPs) in ultraviolet (UV) have attracted a great deal of attention because of their emerging applications in energy resources, environmental protection, and biotechnology. In this article, the dielectric loaded surface plasmon polariton (DLSPP) properties of the Al2O3-Al nanostructure are investigated theoretically. Sharp SP responses can be obtained in deep UV by setting an insulator grating on the aluminum film. It is found that the height of the grating element, the lattice parameter, and the filling factor can all modulate the DLSPPs of the Al2O3-Al nanostructure. We further find that this structure is sensitive to the embedding medium and can serve as a refractive index sensor in the UV region. The corresponding sensitivity increases with the decrease of the filling factor. The Al2O3-Al nanostructure may be useful for medical diagnostics and biotechnology in deep UV.

关键词: surface plasmon, ultraviolet, aluminum, refractive index sensor

Abstract:

Surface plasmons (SPs) in ultraviolet (UV) have attracted a great deal of attention because of their emerging applications in energy resources, environmental protection, and biotechnology. In this article, the dielectric loaded surface plasmon polariton (DLSPP) properties of the Al2O3-Al nanostructure are investigated theoretically. Sharp SP responses can be obtained in deep UV by setting an insulator grating on the aluminum film. It is found that the height of the grating element, the lattice parameter, and the filling factor can all modulate the DLSPPs of the Al2O3-Al nanostructure. We further find that this structure is sensitive to the embedding medium and can serve as a refractive index sensor in the UV region. The corresponding sensitivity increases with the decrease of the filling factor. The Al2O3-Al nanostructure may be useful for medical diagnostics and biotechnology in deep UV.

Key words: surface plasmon, ultraviolet, aluminum, refractive index sensor

中图分类号:  (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

  • 73.20.Mf
42.25.Fx (Diffraction and scattering) 07.07.Df (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)