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Plasmonics

, Volume 13, Issue 5, pp 1735–1739 | Cite as

Nanofilmed Fourier-Transformed Spectrometer with the Interference of Surface Plasmon Wave

  • Liangping Xia
  • Chunlei Du
Article

Abstract

A miniature Fourier-transformed spectrometer based on the subwavelength slit-groove configuration with the interference of surface plasmon wave is proposed. By gradually increasing the set distance of the slit and groove, the interference fringes with different optical path difference is obtained. By then adding the Fourier-transform process, the spectrum of the incident light is recovered. By analyzing the interference in the slit-groove structure, the theory of the spectrometer is obtained. With the finite difference time domain (FDTD) method, the structure parameters are optimized firstly and then the spectrometer in spectrum recovery is demonstrated and the resolution of 3.84 nm is achieved at the wavelength of 750 nm.

Keywords

Spectrometer Surface plasma Fourier transforms Interference 

Notes

Funding Information

This work was supported by the Natural Science Foundation of China (61775213, 61504147) and West Light Foundation of Chinese Academy of Sciences.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  1. 1.School of Electronic Information EngineeringYangtze Normal UniversityChongqingChina
  2. 2.Chongqing Key Laboratory of Multi-scale Manufacturing TechnologyChongqing Institute of Green and Intelligent Technology, Chinese Academy of SciencesChongqingChina

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