Holography has emerged as a vital platform for three-dimensional displays, optical encryption, and photonicinformation processing, leveraging diverse physical dimensions of light such as wavelength, polarization, and ...Holography has emerged as a vital platform for three-dimensional displays, optical encryption, and photonicinformation processing, leveraging diverse physical dimensions of light such as wavelength, polarization, and orbitalangular momentum (OAM) to expand multiplexing capacity. However, the exhaustive utilization of these intrinsicdegrees of freedom has saturated the parameter space for holographic encoding, leaving no room for furtherscalability. Here, we demonstrate an OAM multiplication operator enabled holographic multiplexing. We engineer theoperator-specific hologram that selectively responds to the predefined operator pathway. Subsequent validation oforthogonality between distinct operator pathways ensures the multiplexing ability, thereby enabling the parallelencoding of multiple holographic images. In the experiment, we have successfully demonstrated a ninefold capacityenhancement over conventional OAM holography and a 2-bit operator-multiplexed hologram for high-security opticalencryption. This work introduces operators as a synthetic dimension beyond light’s intrinsic properties intoholography, unlocking a scalable and secure paradigm for ultrahigh-dimensional information technologies.展开更多
基金supported by the National Natural Science Foundation of China(Grants 12134009,12474335,12192252,12374314,12341403,12425410 and U21A20135)National Key Research and Development Program of China(No.2023YFA1407200)Natural Science Foundation of Jiangsu Province(BK20240005).
文摘Holography has emerged as a vital platform for three-dimensional displays, optical encryption, and photonicinformation processing, leveraging diverse physical dimensions of light such as wavelength, polarization, and orbitalangular momentum (OAM) to expand multiplexing capacity. However, the exhaustive utilization of these intrinsicdegrees of freedom has saturated the parameter space for holographic encoding, leaving no room for furtherscalability. Here, we demonstrate an OAM multiplication operator enabled holographic multiplexing. We engineer theoperator-specific hologram that selectively responds to the predefined operator pathway. Subsequent validation oforthogonality between distinct operator pathways ensures the multiplexing ability, thereby enabling the parallelencoding of multiple holographic images. In the experiment, we have successfully demonstrated a ninefold capacityenhancement over conventional OAM holography and a 2-bit operator-multiplexed hologram for high-security opticalencryption. This work introduces operators as a synthetic dimension beyond light’s intrinsic properties intoholography, unlocking a scalable and secure paradigm for ultrahigh-dimensional information technologies.
