Carrier-Envelope-Phase Characterization for an Isolated Attosecond Pulse by Angular Streaking

Pei-Lun He, Camilo Ruiz, and Feng He
Phys. Rev. Lett. 116, 203601 – Published 18 May 2016
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Abstract

The carrier envelope phase (CEP) is a crucial parameter for a few-cycle laser pulse since it substantially determines the laser waveform. Stepping forward from infrared to extreme ultraviolet (EUV) pulses, we propose a strategy to directly characterize the CEP of an isolated attosecond pulse (IAP) by numerically simulating the tunneling ionization of a hydrogen atom in a combined IAP and phase-stabilized circularly polarized IR laser pulse. The fine modulations of the combined laser fields, due to the variation of the CEP of the IAP, are exponentially enlarged onto the distinct time-dependent tunneling ionization rate. Electrons released at different time with distinct tunneling ionization rates are angularly streaked to different directions. By measuring the resulting photoelectron momentum distribution, the CEP of the IAP can be retrieved. The characterization of the CEP of an IAP will open the possibility of capturing sub-EUV-cycle dynamics.

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  • Received 26 August 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.203601

© 2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Atomic, Molecular & Optical

Authors & Affiliations

Pei-Lun He1, Camilo Ruiz2, and Feng He1,*

  • 1Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Departamento de Física de Partículas, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain

  • *fhe@sjtu.edu.cn

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Issue

Vol. 116, Iss. 20 — 20 May 2016

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