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Thin, lightweight micro‐diffractive optical elements (M‐DOEs) are of great significance to integrated optics. However, the narrow working bandwidth of M‐DOEs allows them to operate only at specific wavelengths. Existing solutions require multiple components assembly, which is difficult to implement in an integrated system. Here, a general designing and processing scheme of an optofluidic‐integrated...
Micro‐Diffractive Optical Elements
A general protocol for achieving broadband and high‐efficiency operation of M‐DOEs is presented in article number 2100537 by Zhen‐Nan Tian, Qi‐Dai Chen, Hong‐Bo Sun, and colleagues, with more than 84% diffractive efficiency being realized all over the visible bands. As a proof of concept, the micro‐diffractive lens and micro‐spiral phase plate were successfully fabricated...
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