title: Coding/decoding two-dimensional images with orbital angular momentum of light.
abstract: We investigate encoding and decoding of two-dimensional information using the orbital angular momentum (OAM) of light. Spiral phase plates and phase-only spatial light modulators are used in encoding and decoding of OAM states, respectively. We show that off-axis points and spatial variables encoded with a given OAM state can be recovered through decoding with the corresponding complimentary OAM state.
authors.forename: Jiaqi
authors.initials: J
authors.lastname: Chu
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Li
authors.forename: Quinn
authors.initials: Q
authors.lastname: Smithwick
authors.forename: Daping
authors.initials: D
authors.lastname: Chu