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Title: Full Characterization of a Molecular Cooper Minimum Using High-Harmonic Spectroscopy

Abstract

High-harmonic generation was used to probe the spectral intensity and phase of the recombination-dipole matrix element of methyl chloride (CH 3Cl), revealing a Cooper minimum (CM) analogous to the 3p CM previously reported in argon. The CM structure altered the spectral response and group delay (GD) of the emitted harmonics, and was revealed only through careful removal of all additional contributors to the GD. In characterizing the GD dispersion, also known as the “attochirp” we additionally present the most complete validation to date of the commonly used strong-field approximation for calculating the GD, demonstrating the correct intensity scaling and extending its usefulness to simple molecules.

Authors:
 [1];  [1]; ORCiD logo [2];  [3];  [3];  [2];  [2];  [1];  [1]
  1. The Ohio State Univ., Columbus, OH (United States)
  2. Louisiana State Univ., Baton Rouge, LA (United States)
  3. Univ. of Virginia, Charlottesville, VA (United States)
Publication Date:
Research Org.:
Louisiana State Univ., Baton Rouge, LA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1501834
Grant/Contract Number:  
SC0012462
Resource Type:
Accepted Manuscript
Journal Name:
Applied Sciences
Additional Journal Information:
Journal Volume: 8; Journal Issue: 7; Journal ID: ISSN 2076-3417
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Scarborough, Timothy, Gorman, Timothy, Mauger, François, Sándor, Péter, Khatri, Sanjay, Gaarde, Mette, Schafer, Kenneth, Agostini, Pierre, and DiMauro, Louis. Full Characterization of a Molecular Cooper Minimum Using High-Harmonic Spectroscopy. United States: N. p., 2018. Web. doi:10.3390/app8071129.
Scarborough, Timothy, Gorman, Timothy, Mauger, François, Sándor, Péter, Khatri, Sanjay, Gaarde, Mette, Schafer, Kenneth, Agostini, Pierre, & DiMauro, Louis. Full Characterization of a Molecular Cooper Minimum Using High-Harmonic Spectroscopy. United States. doi:10.3390/app8071129.
Scarborough, Timothy, Gorman, Timothy, Mauger, François, Sándor, Péter, Khatri, Sanjay, Gaarde, Mette, Schafer, Kenneth, Agostini, Pierre, and DiMauro, Louis. Thu . "Full Characterization of a Molecular Cooper Minimum Using High-Harmonic Spectroscopy". United States. doi:10.3390/app8071129. https://www.osti.gov/servlets/purl/1501834.
@article{osti_1501834,
title = {Full Characterization of a Molecular Cooper Minimum Using High-Harmonic Spectroscopy},
author = {Scarborough, Timothy and Gorman, Timothy and Mauger, François and Sándor, Péter and Khatri, Sanjay and Gaarde, Mette and Schafer, Kenneth and Agostini, Pierre and DiMauro, Louis},
abstractNote = {High-harmonic generation was used to probe the spectral intensity and phase of the recombination-dipole matrix element of methyl chloride (CH3Cl), revealing a Cooper minimum (CM) analogous to the 3p CM previously reported in argon. The CM structure altered the spectral response and group delay (GD) of the emitted harmonics, and was revealed only through careful removal of all additional contributors to the GD. In characterizing the GD dispersion, also known as the “attochirp” we additionally present the most complete validation to date of the commonly used strong-field approximation for calculating the GD, demonstrating the correct intensity scaling and extending its usefulness to simple molecules.},
doi = {10.3390/app8071129},
journal = {Applied Sciences},
number = 7,
volume = 8,
place = {United States},
year = {2018},
month = {7}
}

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