An optical tweezer that uses a Fresnel zone plate to trap instead of an objective lens could provide a cheaper and more flexible alternative to conventional optical traps. A team from the US has ...
A new publication from Opto-Electronic Advances; DOI 10.29026/oes.2022.210014 overviews terahertz metasurface zone plates with arbitrary polarizations to a fixed polarization conversion. As an ...
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