We calculated the Fresnel paraxial propagator in a birefringent plate having topological charge q at its center, named “q-plate.” We studied the change of the beam transverse profile when it traverses the plate. An analytical closed form of the beam profile propagating in the q-plate can be found for many important specific input beam profiles. We paid particular attention to the plate having a topological unit charge and found that if small losses due to reflection, absorption, and scattering are neglected, the plate can convert the photon spin into orbital angular momentum with up to 100% efficiency provided the thickness of the plate is less than the Rayleigh range of the incident beam.

Light propagation in a birefringent plate with topological charge / Karimi, Ebrahim; Piccirillo, Bruno; Marrucci, Lorenzo; Santamato, Enrico. - In: OPTICS LETTERS. - ISSN 0146-9592. - STAMPA. - 34:8(2009), pp. 1225-1227. [10.1364/OL.34.001225]

Light propagation in a birefringent plate with topological charge

KARIMI, ebrahim;PICCIRILLO, BRUNO;MARRUCCI, LORENZO;SANTAMATO, ENRICO
2009

Abstract

We calculated the Fresnel paraxial propagator in a birefringent plate having topological charge q at its center, named “q-plate.” We studied the change of the beam transverse profile when it traverses the plate. An analytical closed form of the beam profile propagating in the q-plate can be found for many important specific input beam profiles. We paid particular attention to the plate having a topological unit charge and found that if small losses due to reflection, absorption, and scattering are neglected, the plate can convert the photon spin into orbital angular momentum with up to 100% efficiency provided the thickness of the plate is less than the Rayleigh range of the incident beam.
2009
Light propagation in a birefringent plate with topological charge / Karimi, Ebrahim; Piccirillo, Bruno; Marrucci, Lorenzo; Santamato, Enrico. - In: OPTICS LETTERS. - ISSN 0146-9592. - STAMPA. - 34:8(2009), pp. 1225-1227. [10.1364/OL.34.001225]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/351059
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 72
  • ???jsp.display-item.citation.isi??? 68
social impact