24 citations · 32 across the 7 of their papers we have counts for
9 papers
Field-enhancement and nonlocal effects in epsilon-near-zero photonic gap antennas
Félix Thouin, David M. Myers, Ashutosh Patri +4
In recent years, the large electric field enhancement and tight spatial confinement supported by the so-called epsilon near-zero (ENZ) mode has attracted significant attention for…
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…
Hybrid Epsilon-Near-Zero Modes of Photonic Gap Antennas
Ashutosh Patri, Kévin G. Cognée, David M. Myers +3
We demonstrate that in photonic gap antennas composed of an epsilon-near-zero (ENZ) layer embedded within a high-index dielectric, hybrid modes emerge from the strong coupling betw…
Photonic Gap Antennas Based on High Index-Contrast Slot-Waveguides
Ashutosh Patri, Kévin G. Cognée, Louis Haeberlé +3
Optical antennas made of low-loss dielectrics have several advantages over plasmonic antennas, including high radiative quantum efficiency, negligible heating and excellent photost…
Large-Angle, Broadband and Multifunctional Gratings Based on Directively Radiating Waveguide Scatterers
Ashutosh Patri, Stephane Kena-Cohen, Christophe Caloz
Conventional surface-relief gratings are inefficient at deflecting normally-incident light by large angles. This constrains their use in many applications and limits the overall ef…
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…
Radio Frequency Propagation Model and Fading of Wireless Signal at 2.4 GHz in Underground Coal Mine
Ashutosh Patri, Devidas S. Nimaje
Deployment of wireless sensor networks and wireless communication systems have become indispensable for better real-time data acquisition from ground monitoring devices, gas sensor…