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Title: Characterizing isolated attosecond pulses with angular streaking

Abstract

We present a reconstruction algorithm for isolated attosecond pulses, which exploits the phase dependent energy modulation of a photoelectron ionized in the presence of a strong laser field. The energy modulation due to a circularly polarized laser field is manifest strongly in the angle-resolved photoelectron momentum distribution, allowing for complete reconstruction of the temporal and spectral profile of an attosecond burst. We show that this type of reconstruction algorithm is robust against counting noise and suitable for single-shot experiments. This algorithm holds potential for a variety of applications for attosecond pulse sources.

Authors:
 [1];  [2];  [3];  [4];  [3];  [3];  [3];  [3];  [3];  [3]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  2. Stanford Univ., CA (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1420203
Grant/Contract Number:
AC02-76SF00515; 100317
Resource Type:
Journal Article: Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 26; Journal Issue: 4; Journal ID: ISSN 1094--4087
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Li, Sigi, Guo, Zhaoheng, Coffee, Ryan N., Hegazy, Kareem, Huang, Zhirong, Natan, Adi, Osipov, Timur, Ray, Dipanwita, Marinelli, Agostino, and Cryan, James P. Characterizing isolated attosecond pulses with angular streaking. United States: N. p., 2018. Web. doi:10.1364/OE.26.004531.
Li, Sigi, Guo, Zhaoheng, Coffee, Ryan N., Hegazy, Kareem, Huang, Zhirong, Natan, Adi, Osipov, Timur, Ray, Dipanwita, Marinelli, Agostino, & Cryan, James P. Characterizing isolated attosecond pulses with angular streaking. United States. doi:10.1364/OE.26.004531.
Li, Sigi, Guo, Zhaoheng, Coffee, Ryan N., Hegazy, Kareem, Huang, Zhirong, Natan, Adi, Osipov, Timur, Ray, Dipanwita, Marinelli, Agostino, and Cryan, James P. 2018. "Characterizing isolated attosecond pulses with angular streaking". United States. doi:10.1364/OE.26.004531.
@article{osti_1420203,
title = {Characterizing isolated attosecond pulses with angular streaking},
author = {Li, Sigi and Guo, Zhaoheng and Coffee, Ryan N. and Hegazy, Kareem and Huang, Zhirong and Natan, Adi and Osipov, Timur and Ray, Dipanwita and Marinelli, Agostino and Cryan, James P.},
abstractNote = {We present a reconstruction algorithm for isolated attosecond pulses, which exploits the phase dependent energy modulation of a photoelectron ionized in the presence of a strong laser field. The energy modulation due to a circularly polarized laser field is manifest strongly in the angle-resolved photoelectron momentum distribution, allowing for complete reconstruction of the temporal and spectral profile of an attosecond burst. We show that this type of reconstruction algorithm is robust against counting noise and suitable for single-shot experiments. This algorithm holds potential for a variety of applications for attosecond pulse sources.},
doi = {10.1364/OE.26.004531},
journal = {Optics Express},
number = 4,
volume = 26,
place = {United States},
year = 2018,
month = 1
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1364/OE.26.004531

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  • We present a reconstruction algorithm for isolated attosecond pulses, which exploits the phase dependent energy modulation of a photoelectron ionized in the presence of a strong laser field. The energy modulation due to a circularly polarized laser field is manifest strongly in the angle-resolved photoelectron momentum distribution, allowing for complete reconstruction of the temporal and spectral profile of an attosecond burst. We show that this type of reconstruction algorithm is robust against counting noise and suitable for single-shot experiments. This algorithm holds potential for a variety of applications for attosecond pulse sources.
  • An attosecond ionization gating is achieved using a few-cycle laser pulse in combination with its second harmonic. With this gating, the generation of the electron wave packet (EWP) is coherently controlled, and an isolated EWP of about 270 as is generated. An isolated broadband attosecond extreme ultraviolet pulse with a bandwidth of about 75 eV can also be generated using this gating, which can be used for EWP measurements as efficiently as a 50-as pulse, allowing one to measure a wide range of ultrafast dynamics not normally accessible before.
  • Here, we numerically demonstrate the generation of intense, low-divergence soft X-ray isolated attosecond pulses in a gas-filled hollow waveguide using synthesized few-cycle two-color laser waveforms. The waveform is a superposition of a fundamental and its second harmonic optimized such that highest harmonic yields are emitted from each atom. We then optimize the gas pressure and the length and radius of the waveguide such that bright coherent high-order harmonics with angular divergence smaller than 1 mrad are generated, for photon energy from the extreme ultraviolet to soft X-rays. By selecting a proper spectral range enhanced isolated attosecond pulses are generated. Wemore » study how dynamic phase matching caused by the interplay among waveguide mode, neutral atomic dispersion, and plasma effect is achieved at the optimal macroscopic conditions, by performing time-frequency analysis and by analyzing the evolution of the driving laser’s electric field during the propagation. Our results, when combined with the on-going push of high-repetition-rate lasers (sub- to few MHz’s) may eventually lead to the generation of high-flux, low-divergence soft X-ray tabletop isolated attosecond pulses for applications.« less
  • Calculations are presented for the generation of an isolated attosecond pulse in a multicycle two-color strong-field regime. We show that the recollision of the electron wave packet can be confined to half an optical cycle using pulses of up to 40 fs in duration. The scheme is proven to be efficient using two intense beams, one producing a strong field at {omega} and the other a strong field detuned from 2{omega}. The slight detuning {delta}{omega} of the second harmonic is used to break the symmetry of the electric field over many optical cycles and provides a coherent control for themore » formation of an isolated attosecond pulse.« less