Generating and measuring nondiffracting vector Bessel beams.
Opt Lett
; 38(17): 3429-32, 2013 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-23988976
ABSTRACT
Nondiffracting vector Bessel beams are of considerable interest due to their nondiffracting nature and unique high-numerical-aperture focusing properties. Here we demonstrate their creation by a simple procedure requiring only a spatial light modulator and an azimuthally varying birefringent plate, known as a q-plate. We extend our control of both the geometric and dynamic phases to perform a polarization and modal decomposition on the vector field. We study both single-charged Bessel beams as well as superpositions and find good agreement with theory. Since we are able to encode nondiffracting modes with circular polarizations possessing different orbital angular momenta, we suggest these modes will be of interest in optical trapping, microscopy, and optical communication.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Año:
2013
Tipo del documento:
Article
País de afiliación:
Sudáfrica