Jump to main content
Jump to site search


Engineering spin and antiferromagnetic resonances to realize an efficient direction-multiplexed visible meta-hologram

Author affiliations

Abstract

Driven by the need for enhanced integrated performance and rapid development of ultrathin multitasked optical devices, this paper experimentally demonstrates monolayer direction-controlled multiplexing of a transmissive meta-hologram in the visible domain. The directional sensitivity is designed by imparting direction-controlled spin-dependent holographic recordings in the monolayer structure. The designed metasurface hologram consists of nano half-waveplates (HWPs) of low loss hydrogenated amorphous silicon (a-Si:H). These nano-featured HWPs are carefully designed and optimized for circularly polarized (CP) illumination to not only excite electric and magnetic resonances simultaneously but also to excite antiferromagnetic modes to ensure high transmission for the cross CP-light. The antiferromagnetic modes are excited in such a way that the transmitted CP-light maintains the Ex component of the incident CP-light through even antiparallel magnetic dipoles while they reverse the Ey component via odd antiparallel magnetic dipoles. As compared to the standard amorphous silicon, our a-Si:H exhibits a much lower absorption coefficient in the visible domain. The proposed single-layer design is an advanced step towards scalability, low-cost fabrication, and on-chip implementation of novel metasurfaces with substantially higher performance in the visible domain.

Graphical abstract: Engineering spin and antiferromagnetic resonances to realize an efficient direction-multiplexed visible meta-hologram

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Jul 2019, accepted on 07 Aug 2019 and first published on 07 Aug 2019


Article type: Communication
DOI: 10.1039/C9NH00460B
Nanoscale Horiz., 2019, Advance Article

  •   Request permissions

    Engineering spin and antiferromagnetic resonances to realize an efficient direction-multiplexed visible meta-hologram

    M. A. Ansari, I. Kim, I. D. Rukhlenko, M. Zubair, S. Yerci, T. Tauqeer, M. Q. Mehmood and J. Rho, Nanoscale Horiz., 2019, Advance Article , DOI: 10.1039/C9NH00460B

Search articles by author

Spotlight

Advertisements