We present an easy, efficient, and fast method to generate arbitrary linear combinations of light orbital angular-momentum eigenstates l = ±2 starting from a linearly polarized TEM00 laser beam. The method exploits the spin-to-orbital angular-momentum conversion capability of a liquid-crystal-based q plate and a Dove prism inserted into a Sagnac polarizing interferometer. The nominal generation efficiency is 100%, being limited only by reflection and scattering losses in the optical components. When closed paths are followed on the polarization Poincar´e sphere of the input beam, the associated Pancharatnam geometric phase is transferred unchanged to the orbital angular momentum state of the output beam.

Polarization-controlled evolution of light transverse modes and associated Pancharatnam geometricphase in orbital angular momentum / Karimi, Ebrahim; Slussarenko, Sergei; Piccirillo, Bruno; Marrucci, Lorenzo; Santamato, Enrico. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - STAMPA. - 81:(2010), pp. 053813-1-053813-5. [10.1103/PhysRevA.81.053813]

Polarization-controlled evolution of light transverse modes and associated Pancharatnam geometricphase in orbital angular momentum

KARIMI, ebrahim;SLUSSARENKO, SERGEI;PICCIRILLO, BRUNO
;
MARRUCCI, LORENZO;SANTAMATO, ENRICO
2010

Abstract

We present an easy, efficient, and fast method to generate arbitrary linear combinations of light orbital angular-momentum eigenstates l = ±2 starting from a linearly polarized TEM00 laser beam. The method exploits the spin-to-orbital angular-momentum conversion capability of a liquid-crystal-based q plate and a Dove prism inserted into a Sagnac polarizing interferometer. The nominal generation efficiency is 100%, being limited only by reflection and scattering losses in the optical components. When closed paths are followed on the polarization Poincar´e sphere of the input beam, the associated Pancharatnam geometric phase is transferred unchanged to the orbital angular momentum state of the output beam.
2010
Polarization-controlled evolution of light transverse modes and associated Pancharatnam geometricphase in orbital angular momentum / Karimi, Ebrahim; Slussarenko, Sergei; Piccirillo, Bruno; Marrucci, Lorenzo; Santamato, Enrico. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - STAMPA. - 81:(2010), pp. 053813-1-053813-5. [10.1103/PhysRevA.81.053813]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/366258
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