Courtial, J., Dholakia, K., Robertson, D.A., Allen, L., and Padgett, M.J. (1998) Measurement of the rotational frequency shift imparted to a rotating light beam possessing orbital angular momentum. Physical Review Letters, 80(15), pp. 3217-3219. (doi:10.1103/PhysRevLett.80.3217)
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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.
|Glasgow Author(s) Enlighten ID:||Allen, Prof Leslie and Courtial, Dr Johannes and Padgett, Professor Miles|
|Authors:||Courtial, J., Dholakia, K., Robertson, D.A., Allen, L., and Padgett, M.J.|
|College/School:||College of Science and Engineering > School of Physics and Astronomy|
|Journal Name:||Physical Review Letters|
|Journal Abbr.:||Phys. Rev. Lett.|
|Publisher:||American Physical Society|
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