电介质中与场相关的雪崩电离率。

Field dependent avalanche ionization rates in dielectrics.

作者信息

Rajeev P P, Gertsvolf M, Corkum P B, Rayner D M

机构信息

National Research Council of Canada, Ottawa, Canada, K1A 0R6.

出版信息

Phys Rev Lett. 2009 Feb 27;102(8):083001. doi: 10.1103/PhysRevLett.102.083001. Epub 2009 Feb 24.

DOI:10.1103/PhysRevLett.102.083001

PMID:19257734

Abstract

From the pulse length dependence of the absorption of intense ultrashort laser pulses focused inside fused silica, we reveal the role field-assisted collisional ionization plays in the multiphoton ionization process. This constitutes a cold avalanche ionization mechanism that persists at pulse lengths considered too short for a traditional avalanche.

摘要

通过聚焦在熔融石英内部的强超短激光脉冲吸收的脉冲长度依赖性，我们揭示了场辅助碰撞电离在多光子电离过程中所起的作用。这构成了一种冷雪崩电离机制，在传统雪崩被认为太短的脉冲长度下仍然存在。