Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Zhong-Ming Zheng"'
Autor:
Ya-Chao Wang, Yan-Hui Chen, Zhong-Ming Zheng, Tao Yang, Yang Mei, Lei-Ying Ying, Bao-Ping Zhang
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 1, Pp 1-6 (2024)
Gallium Nitride (GaN)-based vertical-cavity surface-emitting lasers (VCSELs) in green spectral region face the difficulty of the “green gap”. One of the main obstacles is the strong polarization electric field in GaN-based materials, which leads
Externí odkaz:
https://doaj.org/article/2adc38a28fda4736a61c0502401322a4
Autor:
Yan-Hui Chen, Yang Mei, Zhong-Ming Zheng, Rong-Bin Xu, Ya-Chao Wang, Lei-Ying Ying, Zhi-Wei Zheng, Hao Long, Yi-Kun Bu, Bao-Ping Zhang
Publikováno v:
AIP Advances, Vol 13, Iss 7, Pp 075114-075114-7 (2023)
For GaN-based vertical-cavity surface-emitting lasers (VCSELs), a suitable current confinement layer is essential for high-performance devices. The effect of different current confinement layers, including SiO2, AlN, and diamond, on the performance o
Externí odkaz:
https://doaj.org/article/2797afdd9760485cb36c3e9c6e5ec40d
Publikováno v:
Fundamental Research, Vol 1, Iss 6, Pp 684-690 (2021)
Optically pumped wavelength-tunable vertical-cavity surface-emitting lasers (VCSELs) operating in the ultraviolet A (UVA) spectrum were demonstrated. The VCSELs feature double dielectric distributed brag reflectors and a wedge-shaped cavity fabricate
Externí odkaz:
https://doaj.org/article/f29d68f46c844312ab3aa25beaedb244
Autor:
Wen Yang, Shi-Zhan Zheng, Shou-Heng Zhou, Li Zhao, Jin-Yong Zhu, Betina Lukwambe, Regan Nicholaus, Cheng-Hua Li, Zhong-Ming Zheng
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Given the biogeochemical functions of marine microbes, the structure and functional diversity of bacterioplankton communities could be regarded as bioindicators that reflect environmental quality. The habitat of the large yellow croaker (Pseudosciaen
Externí odkaz:
https://doaj.org/article/5d2c78bd0b554051b7fdfef931947f3c
Autor:
Qi Guo, Zong-Da Zhang, Zhong-Ming Zheng, Xue-Peng Pan, Chao Chen, Zhen-Nan Tian, Qi-Dai Chen, Yong-Sen Yu, Hong-Bo Sun
Publikováno v:
IEEE Sensors Journal. 22:5703-5708
Autor:
Yang Zhao, Xin-Yu Ming, Zhong-Ming Zheng, Yong-Sen Yu, Qi-Dai Chen, Han Yang, Peng-Long Wang, Zhen-Nan Tian, Qi Guo, Hong-Bo Sun, Chao Chen
Publikováno v:
IEEE Transactions on Nanotechnology. 18:208-211
In this letter, a sapphire fiber Bragg grating (SFBG) is fabricated by a femtosecond laser line-by-line scanning method. A third-order fiber Bragg grating is obtained in a single crystal sapphire fiber with a diameter of 60 μ m. Compared to the SFBG
Publikováno v:
IEEE Sensors Journal. 18:1100-1103
A small-period long-period grating (LPG) with a period of $40\mu \text{m}$ fabricated in a single-mode fiber by femtosecond laser direct writing has been demonstrated. A series of high-order Bragg resonant peaks of Bragg grating and attenuation bands
Autor:
Shanren Liu, Guanshi Qin, Qi Guo, Zhen-Nan Tian, Xuepeng Pan, Yongsen Yu, Zhixu Jia, Chao Chen, Zhong-Ming Zheng
Publikováno v:
Crystals, Vol 11, Iss 946, p 946 (2021)
In this paper, a sapphire-derived fiber (SDF) with a core diameter of 10 μm and a cladding diameter of 125 μm is fabricated by the melt-in-tube method, and fiber Bragg gratings (FBGs) with reflectivity over 80% are prepared by the femtosecond laser
Autor:
Xuepeng Pan, Zhong-Ming Zheng, Chao Chen, Qi Guo, Yongsen Yu, Zhen-Nan Tian, Shanren Liu, Bo Wang
Publikováno v:
Photonics, Vol 8, Iss 110, p 110 (2021)
In this paper, an energy regulation method based on the combination of a half-wave plate (HWP) and a polarization beam splitter (PBS) is proposed for the fabrication of apodized fiber gratings, which can effectively improve the side lobe suppression
Autor:
Xuepeng Pan, Qi Guo, Zhong-Ming Zheng, Chao Chen, Yong-Qin Zhu, Zhao-kang Xue, Shanren Liu, Tian-qi Shan, Yong-Sen Yu
Publikováno v:
Optical Materials Express. 11:80
A novel intensity-modulated directional torsion sensor based on a helical taper is proposed and experimentally demonstrated. The tapers are fabricated in standard single-mode fiber by electric-arc discharge, and by rotating one side fiber simultaneou