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Conceptual depiction of devices. a) 2D cross section schematic of camera with inverse designed scattering elements placed on top of photosensitive elements at the focal plane of the imaging lens. Green elements sort by color and blue elements sort by polarization, shown in more detail in (b, c). b) Rendering of multispectral and linear polarization device that sorts three bands of wavelengths with the middle band further split on polarization. c) Rendering of full Stokes polarimetry device that sorts four analyzer Jones vectors to different quadrants. d) Rendering of angular momentum splitting device that sorts combinations of orbital angular momentum (l) and spin (s) degrees of freedom. Credit: Nature Communications (2023). DOI: 10.1038/s41467-023-38258-2

‘Evolving’ and 3D printing new nanoscale optical devices

A new technology being pioneered at Caltech is allowing researchers to "evolve" optical devices and then print them out using...