Speaker
Dr
Ian MacPhail-Bartley
(University of British Columbia)
Description
We experimentally demonstrate that the rotation of molecules embedded in helium nanodroplets can be controlled with an optical centrifuge, allowing for the study of molecular dynamics inside the strongly interacting many-body environment of superfluid helium at variable levels of rotational excitation. We show that forced in-field rotation of molecules is possible over a continuous range of frequencies, and that with resonant excitation the field-free excited state rotational dynamics can be observed. This allows for time-domain measurements of state lifetimes, and allows us to study the interaction of superfluids with defects at the atomic level.
| Keyword-1 | coherent control |
|---|---|
| Keyword-2 | superfluidity |
| Keyword-3 | molecular dynamics |
Author
Dr
Ian MacPhail-Bartley
(University of British Columbia)
Co-authors
Mr
Sören Mahr
(University of British Columbia)
Mr
Cameron Peters
(UBC)
Dr
Alexander Milner
(University of British Columbia)
Prof.
Frank Stienkemeier
(University of Freiburg)
Valery Milner
(UBC)