Abstract
Vector beams have shown great promise for applications ranging from near-field optics to nonlinear optics. Here, we experimentally demonstrate a highly efficient and broadband metasurface-based polarization converter that can realize linear polarization rotation with more than 0.9 conversion efficiency over a 1300 nm bandwidth in the short-wave infrared band. Building upon this broadband polarization converter, we design a meta-reflectarray that is capable of generating arbitrary vector beams with the efficiency of >0.8 from 1200 nm to 2500 nm and therefore enable a wide range of applications including optical imaging, optical communication, and data encryption.
Original language | English (US) |
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Journal | Applied Physics Letters |
Volume | 114 |
Issue number | 2 |
DOIs | |
State | Published - Jan 14 2019 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)