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Your search keyword '"Cao, Zhaoliang"' showing total 18 results
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18 results on '"Cao, Zhaoliang"'

4. Intensity-tunable achromatic cascade liquid crystal Pancharatnam-Berry lens

Author

Mo, Zhichang, primary, Zhao, Yuanan, additional, Wang, Jianguo, additional, Liu, Xiaofeng, additional, Cheng, Changjie, additional, Chen, Yi, additional, Zhu, Xiangyu, additional, Zhao, Yadi, additional, Wang, Kun, additional, Ou, Shaozhong, additional, Zhang, Zhouhao, additional, Cao, Zhaoliang, additional, Cao, Qing, additional, and Shao, Jianda, additional

Published
2024
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10. SPGD算法高精度静态像差校正方法

Author

Chen Meirui, 陈梅蕊, primary, Jiang Lü, 姜律, additional, Mao Hongmin, 毛红敏, additional, Sun Huijuan, 孙会娟, additional, Peng Jiantao, 彭建涛, additional, Xu Guoding, 徐国定, additional, Hu Lifa, 胡立发, additional, Lu Huanjun, 陆焕钧, additional, and Cao Zhaoliang, 曹召良, additional

Published
2023
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18. Surface-Enhanced Raman Spectroscopy Substrate Time Stability Improvement Using an External Oxygen Barrier Method.

Author

Song, Congxi, Li, Xiaoping, Jiang, Zhihui, Zhang, Shen, Mao, Hongmin, Zhao, Xin, Lu, Huanjun, and Cao, Zhaoliang

Subjects
*SERS spectroscopy, *RAMAN spectroscopy, *OXYGEN, *CURVE fitting
Abstract

The poor time stability of surface-enhanced Raman scattering (SERS) substrates greatly limits their application potential. Although core–shell structures are commonly used to enhance stability, their complex preparation processes, high costs, and susceptibility under acidic or alkaline conditions result in serious disadvantages for practical applications. Here, we propose a new method of external oxygen barrier to improve spectral stability, in which SERS substrates are stored in an oxygen-free environment. Controlled experiments are carried out under air and vacuum. Raman spectrum intensity is measured 11 times within six months for each group. Using the attenuation formula, the Raman spectrum intensity decay results of each SERS substrate over time are obtained. The effectiveness of the external oxygen barrier method is demonstrated through curve fitting using the corresponding function. The substrate spectral attenuation rates of the vacuum group and the argon group within six months are <20%, proving the effectiveness of the external oxygen barrier method. [ABSTRACT FROM AUTHOR]

Published
2024
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