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Title: Crystal orientation-dependent polarization state of high-order harmonics

Abstract

We analyze the crystal orientation-dependent polarization state of extreme ultraviolet (XUV) high-order harmonics from bulk magnesium oxide crystals subjected to intense linearly polarized laser fields. We find that only along high-symmetry directions in crystals high-order harmonics follow the polarization direction of the laser field. In general, the polarization direction of high-order harmonics deviates from that of the laser field, and the deviation amplitude depends on the crystal orientation, harmonic order and the strength of the laser field. We use a real-space electron trajectory model to understand the crystal orientation-dependent polarization state of XUV harmonics. The polarization analysis allows us to track the motion of strong-field-driven electron in conduction bands in two dimensions. These results have implications in all-optical probing of atomic-scale structure in real-space, electronic band-structure in momentum space, and in the possibility of generating attosecond pulses with time-dependent polarization in a compact setup.

Authors:
 [1]; ORCiD logo [1];  [1];  [2]; ORCiD logo [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Helmholtz Inst. Jena (Germany)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1503235
Alternate Identifier(s):
OSTI ID: 1491230
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Optics Letters
Additional Journal Information:
Journal Volume: 44; Journal Issue: 3; Journal ID: ISSN 0146-9592
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

You, Yong Sing, Lu, Jian, Cunningham, Eric F., Roedel, Christian, and Ghimire, Shambhu. Crystal orientation-dependent polarization state of high-order harmonics. United States: N. p., 2018. Web. doi:10.1364/ol.44.000530.
You, Yong Sing, Lu, Jian, Cunningham, Eric F., Roedel, Christian, & Ghimire, Shambhu. Crystal orientation-dependent polarization state of high-order harmonics. United States. doi:10.1364/ol.44.000530.
You, Yong Sing, Lu, Jian, Cunningham, Eric F., Roedel, Christian, and Ghimire, Shambhu. Tue . "Crystal orientation-dependent polarization state of high-order harmonics". United States. doi:10.1364/ol.44.000530.
@article{osti_1503235,
title = {Crystal orientation-dependent polarization state of high-order harmonics},
author = {You, Yong Sing and Lu, Jian and Cunningham, Eric F. and Roedel, Christian and Ghimire, Shambhu},
abstractNote = {We analyze the crystal orientation-dependent polarization state of extreme ultraviolet (XUV) high-order harmonics from bulk magnesium oxide crystals subjected to intense linearly polarized laser fields. We find that only along high-symmetry directions in crystals high-order harmonics follow the polarization direction of the laser field. In general, the polarization direction of high-order harmonics deviates from that of the laser field, and the deviation amplitude depends on the crystal orientation, harmonic order and the strength of the laser field. We use a real-space electron trajectory model to understand the crystal orientation-dependent polarization state of XUV harmonics. The polarization analysis allows us to track the motion of strong-field-driven electron in conduction bands in two dimensions. These results have implications in all-optical probing of atomic-scale structure in real-space, electronic band-structure in momentum space, and in the possibility of generating attosecond pulses with time-dependent polarization in a compact setup.},
doi = {10.1364/ol.44.000530},
journal = {Optics Letters},
issn = {0146-9592},
number = 3,
volume = 44,
place = {United States},
year = {2018},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 18, 2019
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