Strong-Field Molecular Ionization from Multiple Orbitals

Kotur, Marija; Weinacht, Thomas C.; Zhou, Congyi; Matsika, Spiridoula

doi:10.1103/PhysRevX.1.021010

Title: Strong-Field Molecular Ionization from Multiple Orbitals

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Authors:: Kotur, Marija; Weinacht, Thomas C.; Zhou, Congyi; Matsika, Spiridoula

Publication Date:: Mon Nov 28 00:00:00 EST 2011

Sponsoring Org.:: USDOE

OSTI Identifier:: 1101279

Resource Type:: Published Article

Journal Name:: Physical Review X

Additional Journal Information:: Journal Volume: 1; Journal Issue: 2; Journal ID: ISSN 2160-3308

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

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                    Kotur, Marija, Weinacht, Thomas C., Zhou, Congyi, and Matsika, Spiridoula. Strong-Field Molecular Ionization from Multiple Orbitals.  United States: N. p., 2011. 
Web.  doi:10.1103/PhysRevX.1.021010.

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                    Kotur, Marija, Weinacht, Thomas C., Zhou, Congyi, & Matsika, Spiridoula. Strong-Field Molecular Ionization from Multiple Orbitals.  United States.  https://doi.org/10.1103/PhysRevX.1.021010

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                    Kotur, Marija, Weinacht, Thomas C., Zhou, Congyi, and Matsika, Spiridoula. Mon .  
"Strong-Field Molecular Ionization from Multiple Orbitals".  United States.  https://doi.org/10.1103/PhysRevX.1.021010.

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@article{osti_1101279,

  title        = {Strong-Field Molecular Ionization from Multiple Orbitals},

  author       = {Kotur, Marija and Weinacht, Thomas C. and Zhou, Congyi and Matsika, Spiridoula},

  abstractNote = {},

  doi          = {10.1103/PhysRevX.1.021010},

  journal      = {Physical Review X},

  number       = 2,

  volume       = 1,

  place        = {United States},

  year         = {Mon Nov 28 00:00:00 EST 2011},

  month        = {Mon Nov 28 00:00:00 EST 2011}

}

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Strong-Field Molecular Ionization from Multiple Orbitals

Journal Article Kotur, Marija ; Weinacht, Thomas C ; Zhou, Congyi ; ... - Physical Review X

We demonstrate strong-field ionization from multiple orbitals of excited-state uracil molecules. The molecules are excited to the first bright state by an ultrafast laser pulse in the deep ultraviolet and then ionized with a strong-field laser pulse in the near infrared during ultrafast relaxation back down to the ground state. We measure time- and angle-dependent ion yields for multiple fragments created by strongfield ionization, and interpret the temporally and angularly resolved yields via ab initio electronic structure calculations. We find that the angular distribution for the electron removed from the lowest unoccupied molecular orbital follows the symmetry of the molecularmore »« less
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Publisher's Note: Comment on 'Strong-field ionization of laser-irradiated light homonuclear diatomic molecules: A generalized strong-field approximation-linear combination of atomic orbitals model' [Phys. Rev. A 73, 047401 (2006)]

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V. I. Usachenko and S.-I. Chu [Phys. Rev. A, 71, 063410 (2005)] discuss the molecular strong-field approximation in the velocity gauge formulation and indicate that some of our earlier velocity gauge calculations are inaccurate. Here we comment on the results of Usachenko and Chu. First, we show that the molecular orbitals used by Usachenko and Chu do not have the correct symmetry, and second, that it is an oversimplification to describe the molecular orbitals in terms of just a single linear combination of two atomic orbitals. Finally, some values for the generalized Bessel function are given for comparison.
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Reply to 'Comment on 'Strong-field ionization of laser-irradiated light homonuclear diatomic molecules: A generalized strong-field approximation-linear combination of atomic orbitals model''

Journal Article Usachenko, Vladimir I ; Physics Department, National University of Uzbekistan, Tashkent, 100174 ; and Max-Born-Institute for Nonlinear Optics and Short-Pulse Laser Spectroscopy, Berlin 12489 - Physical Review. A

We acknowledge the criticism of the preceding Comment related to imperfect composition of our model 3{sigma}{sub g} molecular state [V. I. Usachenko and S.-I. Chu, Phys. Rev. A 71, 063410 (2005)]. However, we cannot agree with the authors suggesting this critique also as an irrefutable argument and evidence in support and justification of their opposite and incorrect (viz. inconsistent with relevant experiment) orientation dependence of N{sub 2} ionization rate calculated within the velocity gauge version of molecular strong-field approximation. We demonstrate that appropriately composed 3{sigma}{sub g} state (modified according to the Comment's critique) rather confirm the alternative calculation [A. Jaron-Becker,more »« less
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