journal6 ›› 2011, Vol. 32 ›› Issue (2): 49-51.

• Physics and electronics • Previous Articles     Next Articles

Refractive Index Measurement of Maotai Spirit Based on Symmetrical Metal-Cladding Optical Waveguide with Sub-Millimeter Scale


  1. (Department of Physics and Electronic Science,Tongren University,Tongren 554300,Guizhou China)
  • Online:2011-03-25 Published:2012-04-09

Abstract: The author measured the refractive index of Maotai spirit by symmetrical metal-cladding optical waveguide with sub-millimeter scale.There is no limit of refractive index if the sample is transparent to laser.This simple efficient method,with refractive index precision of 1.0 ×10-4,can identify the authenticity of Maotai spirit.

Key words: symmetrical metal-cladding optical waveguide;Maotai spirit, refractive index

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