Figure | Working principle of full-space adjoint-enabled meta-optics for intracavity field shaping. (IMAGE)
Caption
Figure | Working principle of full-space adjoint-enabled meta-optics for intracavity field shaping. a, Schematic of conventional semi-space wavefront shaping for extracavity 2D field landscapes. b, Schematic of the proposed full-space vector field shaping for 3D intracavity landscapes, which simultaneously accounts for forward and backward propagating waves inside the enclosed cavity. b, Scanning electron microscopy (SEM) image of the initial metasurface mask and its corresponding distorted imaging result. b, SEM image of the optimized freeform metasurface mask and its high-fidelity super-resolution imaging result, with 5-fold enhancement in pattern fidelity.
Credit
Mingbo Pu et al.
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CC BY