Dynamic measurement of time-varying OAM field pattern generated by space-time-coding digital metasurface. (IMAGE)

SPIE--International Society for Optics and Photonics

Dynamic measurement of time-varying OAM field pattern generated by space-time-coding digital metasurface.

Caption

Dynamic measurement of time-varying OAM field pattern generated by space-time-coding digital metasurface. (a) Experimental scenario of dynamic electric field pattern measurement of the generated time-varying OAM beams. (b) Measured near-field amplitude and phase patterns of the time-varying OAM beams at different time instances in one period of T.

Credit

Zhang et al., doi 10.1117/1.AP.5.3.036001.

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