Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Hua Li"'
Publikováno v:
Chinese Journal of Chemical Physics. 23:125-132
A combination of high-field asymmetric waveform ion mobility spectrometry (FAIMS) with mass spectrometer (MS) was analyzed. FAIMS separates ions from the volatile organic compounds in the gas-phase as an ion-filter for MS. The sample ions were create
Autor:
Ling-Cang Cai, Xue-Mei Li, Xiang-Ping Ye, Yu Zhao, Jie Zhong, Ying-Hua Li, Lin Zhang, Zu-Gen Zhang
Publikováno v:
AIP Advances, Vol 6, Iss 2, Pp 025208-025208-7 (2016)
The dynamic fragmentation of shock-melted metal is a topic of increasing interest in shock physics. However, high-quality experimental studies of the phenomenon are limited, and data that are essential for developing predictive models of the phenomen
Autor:
Z.R. Zhao, Wei Gong, George C. Hadjipanayis, A. Kostikas, V. Papaefthymiou, A. Simopouos, Hua Li
Publikováno v:
Journal of Applied Physics. 70:5900-5902
Fe100−xCrx ultrafine particles (UFP) with x=5–55 and a size in the range of 100–500 A have been prepared by the gas evaporation method using Ar gas pressures P=2, 5, and 8 Torr. Transmission electron microscopy with energy dispersive x‐ray an
Publikováno v:
Journal of Applied Physics. 69:5119-5121
Fe, Co, and Ni ultrafine particles (UFP) were prepared by a gas evaporation method in an inert atmosphere. The different preparing conditions of the Fe, Co, and Ni UFP included inert gas pressures and kinds were investigated by means of x‐ray diffr
Publikováno v:
Journal of Applied Physics. 111:07A308
FePt–SiNx–C films on TiN/CrRu/glass substrate with large coercivity, (001) texture, and small isolated grains were obtained by co-sputtering FePt, Si3N4, and C targets at 380 °C. It was found that when C was doped into the FePt–SiNx films, the
Publikováno v:
Journal of Applied Physics. 105:043512
1.5 μm emission and green upconversion emission properties in In/Er-codoped LiNbO3 crystals were investigated by using both steady-state and time-resolved emission spectra. The 1.5 mol % In2O3 codoping results in the lengthening of 1.5 μm emission
Autor:
Ai-Hua Li, Qiang Lü, Liang Sun, Zhi-Ren Zheng, Tian-Quan Lü, Weilong Liu, Yanqiang Yang, Wenzhi Wu
Publikováno v:
Journal of Applied Physics. 105:013536
Visible and ultraviolet upconversion (UC) emission is observed under 800 nm femtosecond laser excitation in LiNbO3 crystals triply doped with Tm3+, Yb3+, and Nd3+ at room temperature. Energy transfer (ET) from Nd3+ to Yb3+ then to Tm3+ is very import
Autor:
Tian-Quan Lü, Weilong Liu, Liang Sun, Ai-Hua Li, Wenzhi Wu, Yanqiang Yang, Qiang Lü, Yu-Heng Xu, Zhi-Ren Zheng
Publikováno v:
Journal of Applied Physics. 104:063526
Observed is 15 times enhancement of Ho3+ green upconversion (UC) emission in Ho3+(0.75 mol %)/Nd3+(0.75 mol %) doped lithium niobate crystal after incorporating with 4 mol % of Yb3+ under 800 nm femtosecond laser excitation. Yb3+ acting as bridging i
Autor:
Tian-Quan Lü, Ai-Hua Li, Liang Sun, Wenzhi Wu, Zhi-Ren Zheng, Qiang Lü, Yanqiang Yang, Weilong Liu
Publikováno v:
Journal of Applied Physics. 104:033511
Optical absorption, spectrally resolved polarized upconversion fluorescence, and time-resolved luminescence spectra are used to investigate the Er3+ spectroscopic properties in a series of congruent LiNbO3 crystals codoped with Er3+ (1 mol %) and MgO
Autor:
Weilong Liu, Z. G. Liu, Wenhui Su, R. B. Zhu, Z. R. Zheng, Ai-Hua Li, Zhifei Dai, Yanfu Yang, W. Z. Wu
Publikováno v:
The Journal of Chemical Physics. 128:124501
The absorption spectra of all-trans-beta-carotene in n-hexane and carbon disulfide (CS(2)) solutions are measured under high pressure at ambient temperature. The common redshift and broadening in the spectra are observed. Simulation of the absorption