3篇
您的检索式：作者名="Siqing Zeng"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Highly efficient acousto-optic modulation using nonsuspended thin-fil1m lithium niobate-chalcogenide hybrid waveguides显示文摘A highly efficient on-chip acousto-optic modulator is as a key component and occupies an exceptional position in microwave-to-optical conversion.Homogeneous thin-film lithium niobate is preferentially employed to build the suspended configuration for the acoustic resonant cavity,with the aim of improving the modulation efficiency of the device.However,the limited cavity length and complex fabrication recipe of the suspended prototype restrain further breakthroughs in modulation efficiency and impose challenges for waveguide fabrication.In this work,based on a nonsuspended thin-film lithium niobate-chalcogenide glass hybrid Mach-Zehnder interferometer waveguide platform,we propose and demonstrate a built-in push-pull acousto-optic modulator with a half-wave-voltage-length product VnL as low as 0.03 V cm that presents a modulation efficiency comparable to that of a state-of-the-art suspended counterpart.A microwave modulation link is demonstrated using our developed built-in push-pull acousto-optic modulator,which has the advantage of low power consumption.The nontrivial acousto-optic modulation performance benefits from the superior photoelastic property of the chalcogenide membrane and the completely bidirectional participation of the antisymmetric Rayleigh surface acoustic wave mode excited by the impedance-matched interdigital transducer,overcoming the issue of low modulation efficiency induced by the incoordinate energy attenuation of acoustic waves applied to the Mach-Zehnder interferometer with two arms in traditional push-pull acousto-optic modulators. | Lei Wan Zhiqiang Yang Wenfeng Zhou Meixun Wen Tianhua Feng Siqing Zeng Dong Liu Huan Li Jingshun Ppan Ning Zhu Weiping Liu Zhaohui Li | 2022 | Light(Science & Applications)2022，11，6： | 2 |
| 2 | Self-perceived Burden among Advanced Cancer Patients: A Cross-Sectional Survey显示文摘Objective:The aims of this study are to explore the prevalence and the influencing factors of SPB(self-perceived burden)among advanced cancer patients.Methods:One hundred fifty-six patients were recruited from the Oncology Comprehensive wards of a comprehensive hospital in Zhuhai city from January to December 2019.Data consisted of a series of questionnaires a week after the patients’hospitalization.Relevant statistical analyses were conducted using SPSS 25.0.Results:58.34%patients reported moderate to severe SPB(VAS≥50 mm).Patients’SPB was associated with place of residence(β=0.160,p=0.049),and time since cancer diagnosis with 7~12 months(β=-0.266,p=0.009)and moderate medical burden(β=-0.209,p=0.037)scores.The proportion of explained variance was 36.0%.Conclusion:Health care professionals should be aware that about over half of advanced cancer patients experience moderate to severe SPB.They should adapt their support of patients who report such a feeling. | Xie Minyi Zeng Xiaoe Li Qiaomin Guan Xiaofang Li Siqing Gong Xiaohua | 2020 | Journal of US-China Medical Science2020，17，4： | 1 |
| 3 | The Effects of Mixed Micelles of Surfactants on Ploymerization of Acrylamide显示文摘 | Zeng Xiancheng Wang Qian Cheng Siqing | 1999 | Journal of Dispersion Science And Technology1999，20，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员