Chinese Journal of Quantum Electronics, Volume. 37, Issue 6, 641(2020)

Determination of refractive index of capsule by using white light interference techniques

Ting FAN1...2,*, Xiaojun MA2, Zongwei WANG2, Qi WANG2, Zhibing HE2 and Yong YI1 |Show fewer author(s)
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  • 2[in Chinese]
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    In order to accurately determine the refractive index of capsule, a method for measuring the refractive index of capsules is established based on the combination of white light vertical scanning interference (VSI) and white light reflectance spectra (WLRS). To solve the problems such as the difficulty to accurately determinate the peak positions and the possible interference order error in white reflectance spectra, the data processing method, in which the curve fitting is used to determine the peak positions and the interference order is determined by the continuity of interference order, is applied. The measurement, experimental verification and uncertainty analysis of the refractive index of glasscapsule are carried out. It is shown that the refractive index of capsule can be measured accurately by white light interference technique, and the measurement uncertainty is about 0.86%.

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    FAN Ting, MA Xiaojun, WANG Zongwei, WANG Qi, HE Zhibing, YI Yong. Determination of refractive index of capsule by using white light interference techniques[J]. Chinese Journal of Quantum Electronics, 2020, 37(6): 641

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    Paper Information

    Received: Apr. 13, 2020

    Accepted: --

    Published Online: Apr. 22, 2021

    The Author Email: Ting FAN (fanlixil@163.com)

    DOI:10.3969/j.issn.1007-5461.2020.06.002

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