Paper
Experimental Study of Liquid Refractive Index Sensing Based on Colloidal Photonic Crystal Photonic Band-Gap
- Authors:
- Ming Wang; Hui Hao; Liben Li; Zhi Zhang; Haitao Yan; Xiaoyan Zhao; Zhiqiang Zhen
- Abstract
- We use the changes of colloidal photonic crystals photonic band-gap center wavelength to study the refractive index sensing by experiment. The changes in the center wavelength of the colloidal crystals photonic band-gap are analyzed in theory, the mould is designed to obtain a controllable self-assembly method, colloidal crystals are observed by scan microscope and the band-gap is measured by infrared spectrometer. The results show that the measured results are well agree with the theoretical analysis. The experimental device is designed to test liquid refractive index. The couple of the fibers are used to measure the band-gap of colloidal crystals and the results are also analyzed in theory. The results show that the band-gap of colloidal crystals can be used to measure the liquid refractive index. The new sensing mechanism is formed and it provides a new application of colloidal crystals in the sensing.
- Keywords
- Colloidal Photonics Crystals; Refractive Index; Sensing; Photonic Band-Gap
- StartPage
- 50
- EndPage
- 54
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