English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Tuning the orbital angular momentum in optical vortex beams

MPS-Authors
/persons/resource/persons76214

Uhrig,  Kai
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons76135

Spatz,  Joachim P.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

/persons/resource/persons75378

Curtis,  Jennifer E.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Schmitz, C. H. J., Uhrig, K., Spatz, J. P., & Curtis, J. E. (2006). Tuning the orbital angular momentum in optical vortex beams. Optics Express, 14(15), 6604-6612. doi:10.1364/OE.14.006604.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-46E3-4
Abstract
We introduce a method to tune the local orbital angular momentum density in an optical vortex beam without changing its topological charge or geometric intensity distribution. We show that adjusting the relative amplitudes a and b of two interfering collinear vortex beams of equal but opposite helicity provides the smooth variation of the orbital angular momentum density in the resultant vortex beam. Despite the azimuthal intensity modulations that arise from the interference, the local orbital angular momentum remains constant on the vortex annulus and scales with the modulation parameter, c = (a-b)/(a+b).