Measurement of the rotational frequency shift imparted to a rotating light beam possessing orbital angular momentum

  • Courtial J
  • Dholakia K
  • Robertson D
 et al. 
  • 103


    Mendeley users who have this article in their library.
  • 138


    Citations of this article.


We observe the frequency shift, l Omega, imparted to a mm-wave beam with an orbital angular momentum of l (h) over bar per photon, when the beam,is rotated at angular frequency Omega. We show that this shift, and those found in a number of experiments on the rotation of circularly polarized beams, are special cases of the rotational frequency shift recently predicted by Bialynicki-Birula and Bialynicka-Birula. The measurement also explicitly confirms a theoretical prediction by Nienhuis.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text


  • J. Courtial

  • K. Dholakia

  • D. A. Robertson

  • L. Allen

  • M. J. Padgett

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free