Research Article Open Access

Use of Optical Reflectometry to Observe Various Concentrations of Glucose

Hariyadi Soetedjo1
  • 1 ,
American Journal of Applied Sciences
Volume 8 No. 5, 2011, 463-467


Published On: 17 May 2011

How to Cite: Soetedjo, H. (2011). Use of Optical Reflectometry to Observe Various Concentrations of Glucose. American Journal of Applied Sciences, 8(5), 463-467.


Problem statement: Monitoring technique on glucose is a hot topic as this compound has been considered to be important in human healthties. Optical reflectometry has been used to study various concentrations of glucose dissolved in the water. Approach: The self-construction of reflectometer used was of hemi-cylinder aluminum to allow light beam strikes the sample at 70° for sor p-polarization state. The cell for sample was of a hemisphere cavity introduced in the hemi-cylinder face down the surface of stage. The visible light was used as a light source, meanwhile dark Nilon material for a stage has been used to allow the specular reflection by the interface introduced between the liquid sample and the stage. Results: From the investigation, the change of concentrations could be observed from the sensitive change of reflected intensities as indicated by a shift of peak wavelength. Conclusion: The measurement results obtained from a simple set up was encouraging for glucose concentration monitoring for wide applications.



  • Optical reflectometry
  • glucose concentration
  • reflected intensities
  • p-polarizations
  • various concentrations
  • Surface Plasmon Resonance (SPR)
  • Reflectometric Interference Spectroscopy (RIfS)
  • DNA molecules
  • optical heterodyne
  • hemi-cylinder