Cold collisions: intrabeam and copropagating beam scattering
The Intrabeam apparatus is our newest instrument. It is an imaging machine directed to studying cold collisions in which quantum phenomena dominate. We recently obtained the first differential cross section measurements for rotationally and electronically inelastic collisions of highly vibrationally excited NO with argon down to 2 cm-1 collision energy. It is the focal point of our current ARO-MURI effort “Quantum State Contolled Molecular Collision Dynamics”.
C. Amarasinghe, H. Li, C. A. Perera, M. Besemer, J. Zuo, A. van der Avoird, G. C. Groenenboom, H. Guo, and A. G. Suits, “Collision Induced Spin-Orbit Relaxation of Highly Vibrationally Excited NO Near 1 K,” Natural Sciences (2021) https://doi.org/10.1002/ntls.20210074
C. Amarasinghe, H. Li, C. A. Perera, M. Besemer, A. van der Avoird, G. C. Groenenboom, J. Zuo, C. Xie, H. Guo, J. Kłos and A. G. Suits “State-to-state scattering of highly vibrationally excited NO at broadly tunable energies,” Nature Chem. (2020) DOI: 10.1038/s41557-020-0466-8.
C. Amarasinghe, H. Li, C. A. Perera, M. Besemer, A. van der Avoird, G. C. Groenenboom, C. Xie, H. Guo, and A. G. Suits*, “Differential Cross Sections for State-to-State Collisions of NO(v=10) in Near-Copropagating Beams,” J. Phys. Chem. Lett. (2019), 10, 10, 2422-2427 DOI: 10.1021/acs.jpclett.9b00847