Probing degrees of orientation of top molecules with odd-even high-order harmonics

Probing degrees of orientation of top molecules with odd-even high-order harmonics Molecular orientation has wide applications in physics and chemistry. However, the degree of orientation achieved in experiments is difficult to evaluate, especially when three-dimensional (3D) orientation is involved. We show numerically and analytically that odd-even high-harmonic generation (HHG) from asymmetric molecules is sensitive to both the degree of orientation and the molecular structure. Based on the observations, a simple procedure is proposed to probe the degree of orientation with odd-even HHG, without the need of solving the rotational equation. This procedure can be applied to 3D-oriented top molecules such as polar or nonpolar planar H32+ with high resolution. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Probing degrees of orientation of top molecules with odd-even high-order harmonics

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Probing degrees of orientation of top molecules with odd-even high-order harmonics

Abstract

Molecular orientation has wide applications in physics and chemistry. However, the degree of orientation achieved in experiments is difficult to evaluate, especially when three-dimensional (3D) orientation is involved. We show numerically and analytically that odd-even high-harmonic generation (HHG) from asymmetric molecules is sensitive to both the degree of orientation and the molecular structure. Based on the observations, a simple procedure is proposed to probe the degree of orientation with odd-even HHG, without the need of solving the rotational equation. This procedure can be applied to 3D-oriented top molecules such as polar or nonpolar planar H32+ with high resolution.
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Publisher
American Physical Society (APS)
Copyright
Copyright © ©2017 American Physical Society
ISSN
1050-2947
eISSN
1094-1622
D.O.I.
10.1103/PhysRevA.96.013432
Publisher site
See Article on Publisher Site

Abstract

Molecular orientation has wide applications in physics and chemistry. However, the degree of orientation achieved in experiments is difficult to evaluate, especially when three-dimensional (3D) orientation is involved. We show numerically and analytically that odd-even high-harmonic generation (HHG) from asymmetric molecules is sensitive to both the degree of orientation and the molecular structure. Based on the observations, a simple procedure is proposed to probe the degree of orientation with odd-even HHG, without the need of solving the rotational equation. This procedure can be applied to 3D-oriented top molecules such as polar or nonpolar planar H32+ with high resolution.

Journal

Physical Review AAmerican Physical Society (APS)

Published: Jul 31, 2017

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