4 papers
Broadband field-enhancement in epsilon-near-zero photonic gap antennas
Félix Thouin, David M. Myers, Ashutosh Patri +3
In recent years, the large electric field enhancement and tight spatial confinement supported by the so-called epsilon-near-zero (ENZ) mode have attracted significant attention for…
Transmissive Suppressed-Order Diffraction Grating (SODG)
Ashutosh Patri, Guillaume Lavigne, Christophe Caloz
We present a novel type of Suppressed-Order Diffraction Grating(SODG). An SODG is a diffraction grating whose diffraction orders have all been suppressed except one that is selecte…
Compact grating coupler using asymmetric waveguide scatterers
Ashutosh Patri, Xiao Jia, Muhammad Mohsin +2
We demonstrate a novel grating coupler design based on double asymmetric and vertically oriented waveguide scatterers to efficiently couple normally incident light to a fundamental…
Metasurface Particle with Independent Transmission and Reflection Full Phase Coverage
Ashutosh Patri, Guillaume Lavigne, Nima Chamanara +1
A metasurface particle with independent transmission and reflection full phase coverage for circularly polarized waves is introduced. This particle is constituted of two parts, one…