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22 October 2004 New-type fiber optical liquid refractometer
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Abstract
A new type of fiber optical liquid refractometer based on total-internal reflection heterodyne interferometry (TIRHI) is proposed. The phase shift difference due to the TIR effects between the P and S-polarizations is measured using heterodyne interferometry with a D-type fiber sensor. Substituting the phase shift difference into Fresnel's equations, the refractive index can be calculated. It has some merits, such as, high sensitivity and stability, small size and real-time measurement.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ming-Hung Chiu and Shinn-Fwu Wang "New-type fiber optical liquid refractometer", Proc. SPIE 5524, Novel Optical Systems Design and Optimization VII, (22 October 2004); https://doi.org/10.1117/12.558882
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