Attosecond pulses generated in gases and solids (Conference Presentation)

P. Corkum
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引用次数: 0

Abstract

Attosecond pulses are generated by electrons that are extracted from a quantum system by an intense light pulse and travel through the continuum under the influence of the electric field of the light. Portions of each electron wave packet are forced to re-collide with its parent ion after the field reverses direction. Upon re-collision, the electron and ion can recombine, emitting soft x-ray radiation that can be in the form of attosecond pulses. This highly nonlinear process occurs in atoms, molecules and solids and offers unique measurement opportunities – for measuring the attosecond pulse itself; the orbital(s) from which it emerged; and the band structure of material in which the wave packets moved.
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气体和固体中产生的阿秒脉冲(会议报告)
阿秒脉冲是由强光脉冲从量子系统中提取的电子产生的,这些电子在光的电场的影响下穿过连续体。在场方向逆转后,每个电子波包的一部分被迫与母离子重新碰撞。在再次碰撞时,电子和离子可以重新结合,释放出软x射线辐射,这种辐射可以以阿秒脉冲的形式出现。这种高度非线性的过程发生在原子、分子和固体中,为测量阿秒脉冲本身提供了独特的测量机会;由它产生的轨道;以及波包在其中移动的物质的带状结构。
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