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1·Single isolated attosecond (as) extreme ultraviolet (XUV) pulses can be generated via the nonlinear optical interaction between intense few-cycle laser fields and noble gas atoms.

通过脉宽为周期量级的超快强场激光脉冲与惰性气体原子的极端非线性相互作用，能够产生单个的阿秒量级的极端远紫外光脉冲。