Diffraction grating-based sensing optofluidic device for measuring the refractive index of liquids

Optics Express
Sergio CalixtoMartha Rosete-Aguilar

Abstract

We describe a simple and versatile optical sensing device for measuring refractive index of liquids. The sensor consists of a sinusoidal relief grating in a glass cell. Device calibration is done by pouring in the cell different liquids of known refractive indices. Each time a liquid is poured first order intensity is measured. The fabrication process and testing of the prototype device is described. An application in the measurement of temperature is also presented.

References

Feb 22, 2008·Applied Optics·Sergio CalixtoVladimir P Minkovich
Apr 3, 2008·Applied Optics·Bruce M Pixton, John E Greivenkamp
Nov 1, 2004·Optics Express·Christian GrilletJ Cooper-White
Feb 15, 2012·Optics Express·Sergio CalixtoCarlos López-Mariscal
Mar 29, 2012·Optics Express·Stefania DanteLaura M Lechuga
May 15, 2013·Applied Optics·Peter LiebetrautHans Zappe

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Citations

Jun 16, 2016·Scientific Reports·Wonkyoung Kim, Dong Sung Kim
Jun 6, 2018·The Review of Scientific Instruments·Itsunari YamadaTetsuya Higuchi
Jun 30, 2019·Optics Express·Xin TuChaolong Song
Jan 24, 2019·Materials·Sergio CalixtoVirginia Francisca Marañon-Ruiz

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