2 citations · 2 across the 5 of their papers we have counts for
5 papers
A Segmented Heater-Driven, Low-Loss, Reconfigurable Photonic Phase-Change Material-Based Phase Shifter
Ranjeet Dwivedi, Agraj Yadav, Regis Orobtchouk +4
Phase-change material (PCM)-based non-volatile multilevel phase shifters are key components in photonic integrated circuits. Electrically, multiple phase levels can be encoded by c…
An Ultra-low-loss Compact Phase-Change Material-based Hybrid-mode Interferometer for Photonic Memories
Ranjeet Dwivedi, Fabio Pavanello, Regis Orobtchouk
We propose a novel hybrid mode interferometer (HMI) leveraging the interference of hybridized TE-TM modes in a silicon-on-insulator (SOI) waveguide integrated with a GeSe phase cha…
Broadband forward scattering of light by plasmonic balls: role of multipolar interferences
Ranjeet Dwivedi, Maeva Lafitte, Lionel Buisson +3
Efficient and broadband forward-scattering is a property of prime importance for meta-atoms if they are to be used in self-assembled metasurfaces. Strong contenders include colloid…
Effective medium description of dense clusters of plasmonic nanoparticles with spatial dispersion
Ranjeet Dwivedi, Ashod Aradian, Virginie Ponsinet +2
We study the electromagnetic behaviour of dense, spherical clusters made of hundreds of plasmonic nanoparticules under illumination by a plane wave. Using high-precision T-matrix n…
Ultra-high Sensitive Surface Plasmon Resonance Based Sensor with Dual Resonance
Indrajeet Kumar, Ranjeet Dwivedi, Saurabh Mani Tripathi
We show that for the optimized angle of incidence, the SPR based optical sensors exhibit dual resonance in the near-infrared region around which the sensor becomes exceptionally hi…