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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
上海光学精密机械研究... [2]
合肥物质科学研究院 [2]
高能物理研究所 [1]
武汉岩土力学研究所 [1]
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OAI收割 [6]
内容类型
期刊论文 [3]
学位论文 [2]
会议论文 [1]
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2022 [1]
2020 [1]
2018 [1]
2015 [1]
2002 [1]
学科主题
光学 [1]
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Characterization of pedestal burst instabilities during I-mode to H-mode transition in the EAST tokamak
期刊论文
OAI收割
NUCLEAR FUSION, 2022, 卷号: 62
作者:
Zhong, X. M.
;
Zou, X. L.
;
Liu, A. D.
;
Song, Y. T.
;
Zhuang, G.
  |  
收藏
  |  
浏览/下载:58/0
  |  
提交时间:2022/05/16
I-mode
I-H transition
pedestal burst instabilities
density gradient
Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR
期刊论文
OAI收割
The Astrophysical Journal, 2020, 卷号: 901, 页码: L7
作者:
HXMT
  |  
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2022/02/08
Radio transient sources
Magnetars
Soft gamma-ray repeaters
2008
992
1471
Astrophysics - High Energy Astrophysical Phenomena
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of A
J
= 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 10
14
Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to R
NIR
? 0.025 (fluence index ?0.35).
A Novel 1,066 nm Nd:Gd0.69Y0.3NbO4 Passively Q-Switched Pulse-Burst Laser
期刊论文
OAI收割
JOURNAL OF RUSSIAN LASER RESEARCH, 2018, 卷号: 39, 期号: 6, 页码: 613-619
作者:
Li, Xudong
;
Xu, Guichuan
;
Yan, Renpeng
;
Liu, Zhixiang
;
Wen, Xiaolin
  |  
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2019/12/25
Nd:Gd0
69Y0
3NbO(4)
burst mode
passive Q-switching
direct pump
Quantitative Assessment Method Of Rock Burst
会议论文
OAI收割
Beijing, PEOPLES R CHINA, JAN 17-18, 2015
作者:
Liu Bin
;
Peng Xing-xin
;
Liu Quan-sheng
;
Huang Kai-zhong
  |  
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2018/06/05
rock burst tendency
analytical mode
sensibility
energy release
新型脉冲CO<,2>激光器参数测试
学位论文
OAI收割
硕士: 中国科学院上海光学精密机械研究所, 2002
作者:
刘翠青
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2016/11/28
高功率脉冲CO<,2>激光
PIE CO<,2>激光
Burst-mode技术
电极结构
皮秒薄片激光相关技术研究
学位论文
OAI收割
作者:
陆俊
  |  
收藏
  |  
浏览/下载:70/0
  |  
提交时间:2018/12/26
薄片激光器
thindisk laser
高重复频率
high repetition rate
被动锁模
Passive mode-locked
啁啾脉冲放大
chirped pulse amplification
突发模式
burst mode