Coherence transfer and rotation-to-vibration energy transfer among CO2 super-rotors

Christopher Kliewer

doi:10.1117/12.2681687

6 October 2023 Coherence transfer and rotation-to-vibration energy transfer among CO₂ super-rotors

Christopher Kliewer

Proceedings Volume PC12681, Ultrafast Nonlinear Imaging and Spectroscopy XI; PC126810D (2023) https://doi.org/10.1117/12.2681687
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

We report on laser trapping and unidirectional angular acceleration of CO2 molecules to energies well beyond the ground state C-O bond dissociation energy. While a centrifugal dissociation barrier prevents prompt dissociation of these molecules, coherent Raman probing, and virtually imaged phased array (VIPA) detection of the scattering signals, provides direct evidence of coherence transfer and rotation-to-vibration energy transfer. The record-breaking acceleration of CO2 to J=364, corresponding to a rotational temperature of over 71,000 K, and high-resolution detection method permitted the determination of improved centrifugal distortion constants.

Conference Presentation

Citation Download Citation

Christopher Kliewer "Coherence transfer and rotation-to-vibration energy transfer among CO₂ super-rotors", Proc. SPIE PC12681, Ultrafast Nonlinear Imaging and Spectroscopy XI, PC126810D (6 October 2023); https://doi.org/10.1117/12.2681687

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