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  Tuning the orbital angular momentum in optical vortex beams

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.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-46E3-4 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002E-7C5D-F
Genre: Journal Article

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OptExpress_14_2006_6604.pdf (Any fulltext), 227KB
 
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https://www.osapublishing.org/oe/viewmedia.cfm?uri=oe-14-15-6604&seq=0 (Any fulltext)
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 Creators:
Schmitz, Christian H. J., Author
Uhrig, Kai1, Author           
Spatz, Joachim P.1, 2, Author           
Curtis, Jennifer E.1, Author           
Affiliations:
1Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_2364731              
2Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany, ou_persistent22              

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 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).

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Language(s): eng - English
 Dates: 2006-06-302006-05-112006-07-032006-07-24
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 282331
DOI: 10.1364/OE.14.006604
URI: https://www.ncbi.nlm.nih.gov/pubmed/19516840
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Title: Optics Express
  Abbreviation : Opt Express
Source Genre: Journal
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Publ. Info: Washington, DC : Optical Society of America
Pages: - Volume / Issue: 14 (15) Sequence Number: - Start / End Page: 6604 - 6612 Identifier: ISSN: 1094-4087
CoNE: https://pure.mpg.de/cone/journals/resource/954925609918