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Far-field measurements of vortex beams interacting with nanoholes

Zambrana-Puyalto, X.; Vidal, X.; Fernandez-Corbaton, I. ORCID iD icon 1; Molina-Terriza, G.
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

We measure the far-field intensity of vortex beams going through nanoholes. The process is analyzed in terms of helicity and total angular momentum. It is seen that the total angular momentum is preserved in the process, and helicity is not. We compute the ratio between the two transmitted helicity components, γm,p. We observe that this ratio is highly dependent on the helicity (p) and the angular momentum (m) of the incident vortex beam in consideration. Due to the mirror symmetry of the nanoholes, we are able to relate the transmission properties of vortex beams with a certain helicity and angular momentum, with the ones with opposite helicity and angular momentum. Interestingly, vortex beams enhance the γm,p ratio as compared to those obtained by Gaussian beams.


Volltext §
DOI: 10.5445/IR/1000053876
Originalveröffentlichung
DOI: 10.1038/srep22185
Scopus
Zitationen: 16
Web of Science
Zitationen: 16
Dimensions
Zitationen: 18
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 2045-2322
urn:nbn:de:swb:90-538766
KITopen-ID: 1000053876
HGF-Programm 43.23.01 (POF III, LK 01) Advanced Optical Lithography+Microscopy
Erschienen in Scientific Reports
Verlag Nature Research
Band 6
Seiten 22185
Nachgewiesen in Web of Science
Dimensions
Scopus
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