A miniaturized system for measurement of the refractive index of sub-microliter liquid

Minghui Chen; Wenyu Jia; Jintao He; Martial Geiser; Gang Zheng

doi:10.3788/COL201917.041201

Journals >Chinese Optics Letters >Volume 17 >Issue 4 >Page 041201 > Article

Chinese Optics Letters
Vol. 17, Issue 4, 041201 (2019)

A miniaturized system for measurement of the refractive index of sub-microliter liquid | Editors' Pick

Minghui Chen^1、2, Wenyu Jia¹, Jintao He¹, Martial Geiser³, and Gang Zheng^1、*

Author Affiliations

¹Institute of Biomedical Optics and Optometry, Shanghai Institute for Minimally Invasive Therapy, University of Shanghai for Science and Technology, Shanghai 200093, China

²Beckman Laser Institute and Center for Biomedical Engineering, University of California, Irvine, CA 92612, USA

³Systems Engineering Institute, University of Applied Sciences Western Switzerland, Sion 1950, Switzerland

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DOI: 10.3788/COL201917.041201 Cite this Article Set citation alerts

Minghui Chen, Wenyu Jia, Jintao He, Martial Geiser, Gang Zheng. A miniaturized system for measurement of the refractive index of sub-microliter liquid[J]. Chinese Optics Letters, 2019, 17(4): 041201 Copy Citation Text

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Interference fringes of two Gaussian beams (red, green, blue, and purple lines represent interference fringes when d(1)=0, d(2)=100 μm, d(3)=250 μm, and d(4)=756 μm, respectively).

Fig. 1. Interference fringes of two Gaussian beams (red, green, blue, and purple lines represent interference fringes when

d (1) = 0

d (2) = 100 μm

d (3) = 250 μm

, and

d (4) = 756 μm

, respectively).

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Fig. 2. Double-beam interferometer using a laser diode as its light source.

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Fig. 3. Physical picture of the double-beam interferometer using a laser diode as its light source.

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Fig. 4. Interference patterns of aqueous glucose solutions of different concentrations. (a) Interference pattern of aqueous glucose solutions with a concentration of 100 mg/dL. (b) Interference pattern of aqueous glucose solutions with a concentration of 150 mg/dL. (c) Interference pattern of aqueous glucose solutions with a concentration of 200 mg/dL.

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Minghui Chen, Wenyu Jia, Jintao He, Martial Geiser, Gang Zheng. A miniaturized system for measurement of the refractive index of sub-microliter liquid[J]. Chinese Optics Letters, 2019, 17(4): 041201

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