Helicity‐Preserving Omnidirectional Plasmonic Mirror

A helicity preserving near-infrared mirror with a reflection efficiency over 91% for incidence angles up to 60° on any arbitrary incidence plane is realized by establishing a unified design framework of artificial electromagnetic boundaries of metasurfaces for omnidirectional polarization control. Similar efficiency and angular range of operation are observed for cross-linear polarization conversion as well. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.