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阿秒条纹相机
释义
阿秒条纹相机
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工学
瞬态光学
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attosecond streak camera
阿秒条纹相机
物质相互作用的很多基本物理过程都发生在可见光周期量级或更短的时间,如处于基态的电子在玻尔轨道上绕原子核运动一周的时间为150as(1as=10-18s),氮原子中从2p轨道发射出的电子波包比从2s轨道发射出的电子波包延迟20as等。为了探测这些过程,需要脉宽更短的阿秒量级的“光探针”,进而就需要发展阿秒量级的测量技术。21世纪初,超短激光脉冲的宽度达到阿秒量级,使得超快诊断的时间分辨率进入阿秒范畴成为可能,即阿秒条纹相机。
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method of records classification according to Geographical features
method of records classification according to object
method of records classification according to Process
method of reduced gradient type
method of reduction
method of reduction of dimension
method of reduction of order
method of reel-up
method of regularization
method of relaxation
method of renormalization
method of repeated substitution
method of residues
method of restricted maximum likelihood
method of retarded potentials
method of Ritz-type
method of rock mechanics analysis
method of rotations
method of round-off
method of saddle points
method of scale
method of sections
method of sedimentation equilibrium
method of sedimentation velocity
method of selected points
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