TY - GEN
T1 - Two optofluidic devices for the refractive index measurement of fluids
AU - Chao, Kuo Sheng
AU - Lin, Tsung Yu
AU - Yang, Ruey-Jen
PY - 2011/10/4
Y1 - 2011/10/4
N2 - Two simple optofluidic devices based on a microprism and a refraction channel, respectively, are proposed for measuring the refractive index of fluids. The microprism chip consists of a liquid optical waveguide channel and a single triangular chamber filled with the test fluid, while the refraction channel chip consists of a single turning channel which functions as a liquid-core/solid-cladding optical waveguide. In both chips, the refractive index of the test fluid is calculated from a CCD image of the refracted ray in accordance with simple geometrical optics principles. The experimental results show that the refraction channel chip provides a more accurate measurement performance than the microprism chip; particularly for colloidal samples. However, the refraction channel chip is suitable only for the measurement of fluids with a refractive index greater than that of the chip substrate. Overall, the results presented in this study show that both devices provide a simple, low cost and effective means of determining the refractive index of a wide range of common test fluids.
AB - Two simple optofluidic devices based on a microprism and a refraction channel, respectively, are proposed for measuring the refractive index of fluids. The microprism chip consists of a liquid optical waveguide channel and a single triangular chamber filled with the test fluid, while the refraction channel chip consists of a single turning channel which functions as a liquid-core/solid-cladding optical waveguide. In both chips, the refractive index of the test fluid is calculated from a CCD image of the refracted ray in accordance with simple geometrical optics principles. The experimental results show that the refraction channel chip provides a more accurate measurement performance than the microprism chip; particularly for colloidal samples. However, the refraction channel chip is suitable only for the measurement of fluids with a refractive index greater than that of the chip substrate. Overall, the results presented in this study show that both devices provide a simple, low cost and effective means of determining the refractive index of a wide range of common test fluids.
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U2 - 10.1109/NEMS.2011.6017372
DO - 10.1109/NEMS.2011.6017372
M3 - Conference contribution
AN - SCOPUS:80053325990
SN - 9781612847757
T3 - NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
SP - 381
EP - 384
BT - NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
T2 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
Y2 - 20 February 2011 through 23 February 2011
ER -