Journal Article

PUBDB-2021-02189

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Controlling rotation in the molecular-frame with an optical centrifuge

Zak, E. J. (Corresponding author)CFEL*DESY* ; Yachmenev, A.CFEL*DESY* ; Küpper, J. (Corresponding author)CFEL*XFEL.EU*DESY*

2021
APS College Park, MD

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Please use a persistent id in citations: doi:10.1103/PhysRevResearch.3.023188  doi:10.3204/PUBDB-2021-02189

Report No.: arXiv:2009.04358

Abstract: We computationally demonstrate a new method for coherently controlling the rotation-axis direction in asymmetric top molecules with an optical centrifuge. Appropriately chosen electric-field strengths and the centrifuge's acceleration rate allow to generate a nearly arbitrary rotational wavepacket. For D$_2$S and 2H-imidazole (C$_3$H$_4$N$_2$) we created wavepackets at large values of the rotational quantum number $J$ with the desired projections of the total angular momentum onto two of the molecules' principal axes of inertia. One application of the new method is three-dimensional alignment with a molecular axis aligned along the laser's wave vector, which is important for the three-dimensional imaging of molecules yet not accessible in standard approaches. The simultaneous orientation of the angular momentum in the laboratory frame and in the molecular frame could also be used in robust control of scattering experiments.

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Contributing Institute(s):

1. CFEL-CMI (FS-CFEL-CMI)
2. beauftragt von UNI (UNI/CUI)
3. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. DFG project 281310165 - Abbildung chemischer Dynamik mittels laserinduzierter Elektronenbeugung im Molekülkoordinatensystem (281310165) (281310165)
3. DFG project 390715994 - EXC 2056: CUI: Advanced Imaging of Matter (390715994) (390715994)
4. DFG project 194651731 - EXC 1074: Hamburger Zentrum für ultraschnelle Beobachtung (CUI): Struktur, Dynamik und Kontrolle von Materie auf atomarer Skala (194651731) (194651731)
5. Ex-Net-0002-Phase2-3 - Advanced Imaging of Matter: Structure, Dynamics and Control on the Atomic Scale - AIM (2018_Ex-Net-0002-Phase2-3) (2018_Ex-Net-0002-Phase2-3)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2021

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