Double Helix

Double helix PSF encodes 3D by rotating light

The double helix point spread function (PSF) is an engineered PSF designed for 3D imaging. The PSF design involves an optimization that applies constraints in Gauss Laguerre, spatial and Fourier domains, and achieves over 30x improvement in transfer function efficiency. Optics Express, APL, SPIE, Optics Express Top Downloads.

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