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长春光学精密机械与物... [4]
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期刊论文 [5]
会议论文 [3]
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Fourier ptychographic reconstruction with denoising diffusion probabilistic models
期刊论文
OAI收割
Optics and Laser Technology, 2024, 卷号: 176
作者:
Wu, Kai
;
Pan, An
;
Gao, Wei
  |  
收藏
  |  
浏览/下载:111/0
  |  
提交时间:2024/08/13
Fourier ptychographic microscopy
Denoising diffusion probabilistic models
Deep learning
State matching
Gradient descent correction
Dynamic Evaluation Strategies for Multiple Aircrafts Formation Using Collision and Matching Probabilities
期刊论文
OAI收割
IEEE/CAA Journal of Automatica Sinica, 2021, 卷号: 8, 期号: 4, 页码: 890-904
作者:
Hongbo Zhao
;
Yongming Wen
;
Sentang Wu
;
Jia Deng
  |  
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2021/04/09
Collision-state probability
dynamic configuration evaluation
matching-state probability
multiple aircrafts formation
A High-Frequency All-Solid-State Ultraviolet Laser at 244 nm
期刊论文
OAI收割
Zhongguo Jiguang/Chinese Journal of Lasers, 2019, 卷号: 46, 期号: 9
作者:
J.Wang
;
Q.Li
;
X.Chen
;
Q.Zheng
;
S.Li
  |  
收藏
  |  
浏览/下载:73/0
  |  
提交时间:2020/08/24
Solid state lasers,Frequency doublers,Lasers,Optical pumping,Phase matching,Ultraviolet lasers
Compact optical image amplifier pumped by a sub-nanosecond Nd:YAG microlaser
期刊论文
OAI收割
APPLIED OPTICS, 2018, 卷号: 57, 期号: 10, 页码: 2622-2626
作者:
Liu, Lei
  |  
收藏
  |  
浏览/下载:84/0
  |  
提交时间:2019/08/23
Geometrical optics
Image intensifiers (solid state)
Noise figure
Optical frequency conversion
Phase matching
Signal to noise ratio
Yttrium aluminum garnet
A compression approach to reducing power consumption of TCAMs in regular expression matching
期刊论文
OAI收割
COMPUTER COMMUNICATIONS, 2015, 卷号: 70, 页码: 86-94
作者:
Yang, Jinmin
;
Yang, Jie
;
Huang, Kun
;
Rong, Huigui
;
Li, Kin Fun
  |  
收藏
  |  
浏览/下载:44/0
  |  
提交时间:2019/12/13
Regular expression matching
Ternary content addressable memory
Power consumption
Compressibility identification
Source state differentiation
Energy transition between Yb3+-Tm3+-Gd3+ in Gd3+, Yb3+ and Tm3+ Co-doped fluoride nanocrystals (EI CONFERENCE)
会议论文
OAI收割
17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states
作者:
Zhang J.
;
Zhang J.
;
Zhang J.
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2013/03/25
YF3: 20%Gd3+
20%Yb3+
0.5%Tm3+ nanocrystal has been synthesized by a hydrothermal method. The upconversion (UC) emission and energy transfer progresses between Gd3+-Yb 3+-Tm3+ under a 980-nm continuous wave semiconductor laser diode excitation have been explored. The experimental results show that the violet and ultraviolet (UV) enhancement with Tm3+ upconversion emission occurs in the nanocrystal
and in the same time the UC emissions of Gd3+ from 6D9/2
6IJ
6P5/2
and 6P7/2 states to the ground state 8S7/2 are obtained
too. The dynamic analysis implies that
under 980-nm excitation
the nanocrystal dimension plays a key role in the efficient energy transfer processes between Gd3+-Yb 3+-Tm3tt based on the energy matching conditions. 2011 Published by Elsevier B.V.
Mean shift tracking combining SIFT (EI CONFERENCE)
会议论文
OAI收割
2008 9th International Conference on Signal Processing, ICSP 2008, October 26, 2008 - October 29, 2008, Beijing, China
作者:
Xue C.
收藏
  |  
浏览/下载:82/0
  |  
提交时间:2013/03/25
A novel visual tracking algorithm to cope with occlusion and scale variation is proposed. This method combines mean shift and SIFT algorithm to track object. SIFT algorithm is invariant to rotation
translation and scale variation. But it is a timeconsuming algorithm. The wasting time is related to image size. So the proposed algorithm first adopts mean shift to initially locate object position
then SIFT operator is used to detect features in object area and model area
lastly
the proposed method matches features in these two areas and calculates the relationship between them using affine transform. According to affine transform parameters
the state of object can be adjusted in time. In order to reduce process time
an improved feature matching algorithm is proposed in this paper. Experiments show that the proposed algorithm deals with occlusion successfully and can adjust object size in time. 2008 IEEE.
Optical thin films for high power LD-pumped Nd:YVO4 457nm blue laser (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China
Bu Y.
;
Zheng Q.
;
Xue Q.
;
Qian L.
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2013/03/25
The expanding field of LD-pumped solid state lasers forms an extraordinary challenge for developing the optical coatings. Optical thin films for LD-pumped Nd:YVO4/LBO blue laser at 457nm was presented in this paper based on lower gain laser line action theory
including spectral beam dividers and doubling antireflecting multilayer coatings. To achieve 914nm laser action and 457nm blue light high output power
the coating specifications of laser resonator was analyzed. The transmittance/reflectance spectrum request was effectively separated by adopting high tuned radio stack
simultaneously the spectrum request was reasonably distributed on the two resonator facet reflectivity for restrain the other laser lines such as1064nm and1342nm. The dielectric high reflective laser mirror and antireflecting coatings for 457nm laser were manufactured by double ion beam sputtering technique
which is controlled by a time-power monitoring. Using type-I critical phase-matching LBO crystal
457nm blue laser is obtained by 914nm intracavity frequency doubling. The maximum laser output power of 1.5W is obtained when incident pump laser of 15W is used.