Ontology highlight
ABSTRACT:
SUBMITTER: Khorasaninejad M
PROVIDER: S-EPMC4928906 | biostudies-other | 2016 May
REPOSITORIES: biostudies-other
Khorasaninejad Mohammadreza M Ambrosio Antonio A Kanhaiya Pritpal P Capasso Federico F
Science advances 20160513 5
Subwavelength structured surfaces, known as meta-surfaces, hold promise for future compact and optically thin devices with versatile functionalities. By revisiting the concept of detour phase, we demonstrate high-efficiency holograms with broadband and chiral imaging functionalities. In our devices, the apertures of binary holograms are replaced by subwavelength structured microgratings. We achieve broadband operation from the visible to the near infrared and efficiency as high as 75% in the 1.0 ...[more]