Ladder operators formalism for optical angular momentum transfer and space-variant Pancharatnam-Berry phase

Hyunhee Choi, J. W. Wu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Ladder operators are introduced in SU(2) parameter space to analyze the space-variant Pancharatnam-Berry (PB) phase. The spin and orbital angular momentum transfers to a wave passing through the PB phase optical elements are understood in terms of the PB phase. Space-variant PB phase structures are identified in polarization grating and cholesteric liquid crystal, providing an explanation for the beam propagation direction alteration. A simultaneous occurrence of the wavefront shaping and the beam propagation direction alteration is demonstrated experimentally.

Original languageEnglish
Pages (from-to)491-494
Number of pages4
JournalJournal of the Optical Society of America B: Optical Physics
Volume25
Issue number4
DOIs
StatePublished - Apr 2008

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