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CAS IR Grid
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长春光学精密机械与物... [3]
地质与地球物理研究所 [1]
苏州纳米技术与纳米仿... [1]
数学与系统科学研究院 [1]
武汉物理与数学研究所 [1]
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期刊论文 [5]
会议论文 [3]
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An improved threshold dynamics method for wetting dynamics
期刊论文
OAI收割
JOURNAL OF COMPUTATIONAL PHYSICS, 2019, 卷号: 392, 页码: 291-310
作者:
Wang, Dong
;
Wang, Xiao-Ping
;
Xu, Xianmin
  |  
收藏
  |  
浏览/下载:59/0
  |  
提交时间:2020/01/10
Threshold dynamics method
Wetting
Contact point
Young's angle
Gaussian kernel
Angle-resolved photoelectron energy spectrum from the high-order above-threshold ionization process in IR plus XUV two-color laser fields
期刊论文
OAI收割
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2018, 卷号: 51, 期号: 24, 页码: 11
作者:
Wang, Bingbing
;
Liu, Xiaojun
;
Chen, Jing
;
Yang, Yujun
;
Li, Fei
  |  
收藏
  |  
浏览/下载:250/0
  |  
提交时间:2019/04/30
high-order above-threshold ionization
IR-FXUV two-color laser fields
angle-resolved photoelectron energy spectrum
the frequency-domain theory
A modified structure with asymmetric and doping barrier interlayers of GaAs-based laser diodes with both small vertical divergence angle and low threshold current
期刊论文
OAI收割
SUPERLATTICES AND MICROSTRUCTURES, 2015, 卷号: 80, 页码: 7
作者:
Li, X
;
Zhao, DG
;
Jiang, DS
;
Chen, P
;
Liu, ZS
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2015/12/31
GaAs laser diodes
Threshold current
Divergence angle
Corner detection using Gabor filters
期刊论文
OAI收割
iet image processing, 2014, 卷号: 8, 期号: 11, 页码: 639-646
作者:
Zhang, Wei-Chuan
;
Wang, Fu-Ping
;
Zhu, Lei
;
Zhou, Zuo-Feng
收藏
  |  
浏览/下载:51/0
  |  
提交时间:2015/03/19
edge detection
Gabor filters
grey systems
affine transforms
Gabor filter
contour-based corner detection
magnitude response
edge contour shape analysis
local curvature maxima points
planar curve
corresponding grey-variation information
Canny edge detector
normalised magnitude response
magnitude response threshold
angle threshold
detection accuracy
localisation accuracy
afflne transform
noise-robustness
Theoretical research of an improved C-V method to measure the elastic constants of nematic liquid crystal (EI CONFERENCE)
会议论文
OAI收割
Asia Display 2007, AD'07, March 12, 2007 - March 16, 2007, Shanghai, China
Kong X.
;
Jin H.
;
Huang X.
;
Liao Y.
;
Liu J. e.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
A more exactitude C-V method to determine the elastic constants for nematic liquid crystal is discussed. For positive nematic liquid crystal(NLC)
the threshold voltage becomes uncertain when the pretilt angle is not zero
so the value of k11 must be erroneous. To solve this problem
we report the formulas about capacitance and voltage with the pretilt angle isn't zero
present the method to determine the elastic constants -k11 and k 33 simultaneously by curvefitting. We simulate and analyze the theory of this method in virtue of MatLab. The proposed method can reduce the requirement of LC cell
increase the accuracy.
Large aperture low threshold current 980nmVCSELs fabricated with pulsed anodic oxidation (EI CONFERENCE)
会议论文
OAI收割
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
Jinjiang C.
;
Yongqiang N.
;
Te L.
;
Guangyu L.
;
Yan Z.
;
Biao P.
;
Yanfang S.
;
Lijun W.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
Pulsed anodic oxidation technique
a new way of forming current blocking layers
was successfully used in ridge-waveguide QW laser fabrication. We apply this method in 980nm VCSELs fabrication to form a high-quality native oxide current blocking layer
which simplify the device process. A significant reduction of threshold current and a distinguished device performance are achieved. The 500m-diameter device has a current threshold as low as 0.48W. The maximum CW operation output power at room temperature is 1.48W. The lateral divergence angle //and vertical divergence angle are as low as 15.3 and 13.8 without side-lobes at a current of 6A.
Double-parameter threshold and its formation mechanism of the colluvial landslide: Xintan landslide, China
期刊论文
OAI收割
ENVIRONMENTAL GEOLOGY, 2006, 卷号: 49, 期号: 5, 页码: 696-707
作者:
He, KQ
;
Wang, SJ
  |  
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2018/09/26
colluvial slope
surface displacement vector angle
displacement velocity
space-time characteristics
double-parameter threshold
Xintan landslide
China slope stability
High-power InGaAs/GaAs VCSEL's two-dimension arrays (EI CONFERENCE)
会议论文
OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu Y.
;
Wang L.-J.
;
Wang L.-J.
;
Liu Y.
;
Liu Y.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
Selectively oxidized InGaAs/GaAs vertical -cavity surface-emitting lasers (VCSEL) array at an emission wavelength of 980nm was reported. A 16 elements array with 200m aperture size (250m center spacing) of individual elements shows a CW output power of 1.21 W at room temperature
resulting in 1 KW/cm2 average optical power density. The device threshold current is 1.32A The lasing peak wavelength is 981.9 nm
the full width at half-maximum is 0.7 nm
and the far-field divergence angle is about 17.The characteristics of a single device with a active region diameter of 800m is compared with that of a 2-D array with active region diameter of individual clement of 200m. These two kinds of devices have the same total lasing area. At the same current injection
the single device has a higher threshold and a higher output power than the array. The red shift of single device is more obvious than that of the array's.