We investigate the effect of a rotating medium on orbital angular momentum (OAM)-carrying beams by combining a weak probe beam shifted in frequency relative to a strong pump beam. We show how the rotational Doppler effect modifies the light-matter interaction through the external rotation of the medium. This interaction leads to an absorption that increases with the mechanical rotation velocity of the medium and with a rate that depends on the OAM of the light beam.
|Number of pages||3|
|Early online date||21 Jun 2018|
|Publication status||Published - 1 Jul 2018|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics