中国科学院机构知识库网格系统: 检索

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	Study on Spectrum Shifting and Pulse Splitting of Mode-Locked Fiber Lasers Based on NPR Technology 期刊论文 OAI收割 NANOMATERIALS, 2024, 卷号: 14, 期号: 9 作者: Hao, Zhenhua; Hu, Yu; Zhou, Siyu; Liu, Jinhui; Li, Xiaohui \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2024/08/22 mode-locked laser nonlinear polarization rotation spectrum shift multi-pulse
	Driving mechanism of keyhole evolution during multi-pulse drilling with a millisecond laser 期刊论文 OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2019, 卷号: 62, 期号: 10, 页码: 7 作者: Zhang Y(张越); Yu G(虞钢); He XL(何秀丽); Li SX(李少霞); Ning WJ(宁伟健) \| 收藏 \| 浏览/下载：102/0 \| 提交时间：2019/10/21 multi-pulse laser drilling melt ejection vaporization keyhole evolution driving mechanism
	Waveform control in generations of intense water window attosecond pulses via multi-color combined field 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2019, 卷号: 33, 期号: 13, 页码: 23 作者: Li, Liang; Zheng, Mian; Feng, R. Liqiang; Qiao, Yan \| 收藏 \| 浏览/下载：51/0 \| 提交时间：2019/07/26 High-order harmonic generation attosecond pulse generation spatial inhomogeneous field superposed initial state multi-color combined field
	Nano-plasmonic-pump-probe effect on the intensity enhancement of attosecond pulse from hydrogen molecular ion 期刊论文 OAI收割 LASER PHYSICS LETTERS, 2018, 卷号: 15, 期号: 11, 页码: 8 作者: Feng, Liqiang; Feng, April Y.; Li, Yi \| 收藏 \| 浏览/下载：43/0 \| 提交时间：2019/06/20 high-order harmonic generation multi-photon-resonance-ionization pump-probe pulse plasmonic field enhancement single attosecond pulse
	XUV pulse effect on harmonic emission spectra and attosecond pulse generation 期刊论文 OAI收割 MODERN PHYSICS LETTERS B, 2017, 卷号: 31, 期号: 34 作者: Feng, Liqiang; Castle, R. S.; Li, Yi \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2019/06/20 High-order Harmonic Generation Xuv Pulse Harmonic Enhancement Multi-harmonic Cutoff Extension Frequency Modulation Of The Harmonics
	Characterization and mechanism studies of argon dielectric barrier discharge excited by a Gaussian voltage at atmospheric pressure 期刊论文 OAI收割 scientia sinica physica, mechanica & astronomica, 2016, 卷号: 46, 期号: 11, 页码: 58-67 作者: Xu Yonggang; Zhu Sha; Tang Jie; Jiang Weiman; Wang Yishan 收藏 \| 浏览/下载：27/0 \| 提交时间：2017/03/10 dielectric barrier discharge Gaussian voltage multi-current pulse mode transitio
	高重频测距中多脉冲测量数据的处理方法研究期刊论文 OAI收割中国激光(hongguo Jiguang/Chinese Journal of Lasers), 2014, 卷号: 41 作者: 李祝莲; 郑向明; 伏红林; 何少辉; 熊耀恒收藏 \| 浏览/下载：59/0 \| 提交时间：2016/04/13 测量(measurement) 激光测距(laser ranging) 高重频测距(high-repetitive frequency ranging) 多脉冲(multi-pulse) 屏幕处理技术(screen processing)
	All-solid-state high beam quality 1053nm nd: Glass amplifier at repetition frequency (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Optical, Electronic Materials and Applications 2012, OEMA 2012, May 25, 2012 - May 26, 2012, Chongqing, China 作者: Qiu J.; Yu J. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 A laser amplifier of LD pumping Nd: glass with a high beam quality and stability which amplifies nanosecond laser pulse has been developed in this paper. The device adopts the major technology of "LD pumping multi pass amplification together". Beam transmission is designed with the technology of "inhibition of diffraction effect active control and spatial filtering". (2012) Trans Tech Publications Switzerland.
	Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China Wu Z.-G.; Wang M.-J.; Han G.-L. 收藏 \| 浏览/下载：78/0 \| 提交时间：2013/03/25 Being an efficient method of information fusion image fusion has been used in many fields such as machine vision medical diagnosis military applications and remote sensing.In this paper Pulse Coupled Neural Network (PCNN) is introduced in this research field for its interesting properties in image processing including segmentation target recognition et al. and a novel algorithm based on PCNN and Wavelet Transform for Multi-focus image fusion is proposed. First the two original images are decomposed by wavelet transform. Then based on the PCNN a fusion rule in the Wavelet domain is given. This algorithm uses the wavelet coefficient in each frequency domain as the linking strength so that its value can be chosen adaptively. Wavelet coefficients map to the range of image gray-scale. The output threshold function attenuates to minimum gray over time. Then all pixels of image get the ignition. So the output of PCNN in each iteration time is ignition wavelet coefficients of threshold strength in different time. At this moment the sequences of ignition of wavelet coefficients represent ignition timing of each neuron. The ignition timing of PCNN in each neuron is mapped to corresponding image gray-scale range which is a picture of ignition timing mapping. Then it can judge the targets in the neuron are obvious features or not obvious. The fusion coefficients are decided by the compare-selection operator with the firing time gradient maps and the fusion image is reconstructed by wavelet inverse transform. Furthermore by this algorithm the threshold adjusting constant is estimated by appointed iteration number. Furthermore In order to sufficient reflect order of the firing time the threshold adjusting constant is estimated by appointed iteration number. So after the iteration achieved each of the wavelet coefficient is activated. In order to verify the effectiveness of proposed rules the experiments upon Multi-focus image are done. Moreover comparative results of evaluating fusion quality are listed. The experimental results show that the method can effectively enhance the edge details and improve the spatial resolution of the image. 2011 SPIE.