6 March 2014 Optofluidic prism refractometer
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This paper describes a simple method of measuring refractive indices of liquids with a small hollow prism. When a He-Ne laser beam is sent to the liquid filled prism it is angularly deviated or deflected. If different liquids are injected in the prism, one at a time, the angular position of the emerging beam changes. These angular positions are detected by an optical fiber that samples a small area of the Gaussian beam cross section. A calibration curve relating intensity as a function of the liquid refractive index is obtained.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergio Calixto, Sergio Calixto, Areli Montes-Perez, Areli Montes-Perez, Guillermo Garnica, Guillermo Garnica, } "Optofluidic prism refractometer", Proc. SPIE 8976, Microfluidics, BioMEMS, and Medical Microsystems XII, 89761D (6 March 2014); doi: 10.1117/12.2036788; https://doi.org/10.1117/12.2036788


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