Zobrazeno 1 - 10
of 197
pro vyhledávání: '"Yuandong Gu"'
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 2, Pp 1-7 (2023)
Compared with conventional lenses, metalenses can offer smaller form factor, light weight and new functionality, and have become the focus of the recent investigations of metasurface. To date, quite a lot of studies have been reported for chromatic a
Externí odkaz:
https://doaj.org/article/b98b028c496f4cbe9034445bb26f3637
Publikováno v:
Micromachines, Vol 15, Iss 2, p 190 (2024)
Acoustically actuated magnetoelectric (ME) antennas utilize acoustic wave resonance to complete the process of receiving and transmitting signals, which promotes the development of antenna miniaturization technology. This paper presents a bilayer mag
Externí odkaz:
https://doaj.org/article/94a6e80551b744d98e5867427620cfef
Publikováno v:
Micromachines, Vol 13, Iss 11, p 1916 (2022)
This paper introduces a novel nondestructive wafer scale thin film thickness measurement method by detecting the reflected picosecond ultrasonic wave transmitting between different interfacial layers. Unlike other traditional approaches used for thic
Externí odkaz:
https://doaj.org/article/21bc5f6467c04fbba54797f40af43e56
Publikováno v:
Sensors, Vol 22, Iss 21, p 8100 (2022)
In this paper, a flexible piezoelectric micromachined ultrasonic transducer (PMUT) based on Scandium (Sc)-doped Aluminum Nitride (AlN) film was designed and modeled by the three-dimensional finite element method (3D-FEM). The resonant frequency of 21
Externí odkaz:
https://doaj.org/article/d443c689669d440f8877c9f2d2479926
Autor:
Wen Chen, Linwei Zhang, Shangshu Yang, Wenhan Jia, Songsong Zhang, Yuandong Gu, Liang Lou, Guoqiang Wu
Publikováno v:
Micromachines, Vol 12, Iss 9, p 1118 (2021)
In this work, three-dimensional finite element analysis (3D FEA) of quasi-surface acoustic wave (QSAW) resonators with high accuracy is reported. The QSAW resonators consist of simple molybdenum (Mo) interdigitated transducers (IDT) on solidly mounte
Externí odkaz:
https://doaj.org/article/81611945cb63499f867ec2deb5480872
Autor:
Zhipeng Wu, Wenjuan Liu, Zhihao Tong, Songsong Zhang, Yuandong Gu, Guoqiang Wu, Alexander Tovstopyat, Chengliang Sun, Liang Lou
Publikováno v:
Sensors, Vol 21, Iss 19, p 6414 (2021)
In this paper, a novel ring-down suppression system based on transfer function is proposed for the first time to suppress the ring-down time and decrease the blind area of PMUTs (Piezoelectric Micromachined Ultrasonic Transducers). This suppression s
Externí odkaz:
https://doaj.org/article/eebc5f015c814edfaa55320a5a5b2ba1
Autor:
Yue-Feng Liu, Yi-Fan Zhang, Ming Xu, Zhen-Yu Zhang, Jifang Tao, Yuandong Gu, Jing Feng, Hong-Bo Sun
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 1, Pp 1-8 (2017)
In this paper, we have demonstrated an efficient perovskite light-emitting device (PeLED) by improving perovskite crystallization. The improved perovskite crystallization has been achieved by pretreating the underneath poly (3, 4-ethylenedioxythiophe
Externí odkaz:
https://doaj.org/article/05cef597a63c43098eee602eb0f27c8d
Autor:
Tao Wang, Zhengjie Tang, Huamao Lin, Kun Zhan, Jiang Wan, Shihao Wu, Yuandong Gu, Wenbo Luo, Wanli Zhang
Publikováno v:
Sensors, Vol 20, Iss 6, p 1788 (2020)
In this paper we demonstrate a novel acoustic wave pressure sensor, based on an aluminum nitride (AlN) piezoelectric thin film. It contains an integrated vacuum cavity, which is micro-fabricated using a cavity silicon-on-insulator (SOI) wafer. This s
Externí odkaz:
https://doaj.org/article/44be756c29054e9bbf3d33d99fec0208
Autor:
Wenjuan Liu, Leming He, Xubo Wang, Jia Zhou, Weijiang Xu, Nikolay Smagin, Malika Toubal, Hao Yu, Yuandong Gu, Jinghui Xu, Denis Remiens, Junyan Ren
Publikováno v:
Sensors, Vol 19, Iss 20, p 4450 (2019)
This paper presents three-dimensional (3D) models of high-frequency piezoelectric micromachined ultrasonic transducers (PMUTs) based on the finite element method (FEM). These models are verified with fabricated aluminum nitride (AlN)-based PMUT array
Externí odkaz:
https://doaj.org/article/5ea56ccaba4e48059d097ec9e2ca903a
Autor:
Arum Kim, Heelim Lee, Clinton F. Jones, Siddharthya K. Mujumdar, Yuandong Gu, Ronald A. Siegel
Publikováno v:
Gels, Vol 4, Iss 1, p 4 (2017)
We report here studies of swelling, mechanics, and thermal stability of hydrogels consisting of 20 mol % methacrylamidophenylboronic acid (MPBA) and 80 mol % acrylamide (AAm), lightly crosslinked with methylenebisacrylamide (Bis). Swelling was measur
Externí odkaz:
https://doaj.org/article/7e934682756a4d7eba155217544efd48