activity
20032024
most citedTunable nanophotonics enabled by chalcogenide phase-change materials

445 citations · 1.9k across the 31 of their papers we have counts for

collaborators

32 papers

cond-mat.mtrl-sci2024★ 2 cited

Ion-Assisted Nanoscale Material Engineering in Atomic Layers

Hossein Taghinejad, Mohammad Taghinejad, Sajjad Abdollahramezani +11

Achieving deterministic control over the properties of low-dimensional materials with nanoscale precision is a long-sought goal. Mastering this capability has a transformative impa…

physics.app-ph2022★ 15 cited

Enhanced Polling and Infiltration for Highly-Efficient Electro-Optic Polymer-Based Mach-Zehnder Modulators

Iman Taghavi, Razi Dehghannasiri, Tianren Fan +7

An ultra-narrow slot waveguide is fabricated for use in highly-efficient, electro-optic-polymer-based, integrated-optic modulators. Measurement results indicate that 's below…

physics.optics2021★ 21 cited

Enhanced Meta-Displays Using Advanced Phase-Change Materials

Omid Hemmatyar, Sajjad Abdollahramezani, Ioannis Zeimpekis +12

Structural colors generated due to light scattering from static all-dielectric metasurfaces have successfully enabled high-resolution, high-saturation, and wide-gamut color printin…

physics.optics2021★ 12 cited

Advanced Phase-Change Materials for Enhanced Meta-Displays

Omid Hemmatyar, Sajjad Abdollahramezani, Sergey Lepeshov +4

Structural colors generated due to light scattering from static all-dielectric metasurfaces have successfully enabled high-resolution, high-saturation and wide-gamut color printing…

physics.optics2021★ 371 cited

Electrically driven programmable phase-change meta-switch reaching 80% efficiency

Sajjad Abdollahramezani, Omid Hemmatyar, Mohammad Taghinejad +11

Despite recent advances in active metaoptics, wide dynamic range combined with high-speed reconfigurable solutions is still elusive. Phase-change materials (PCMs) offer a compellin…

physics.optics2021★ 19 cited

Racetrack microresonator based electro-optic phase shifters on a 3C-silicon-carbide-on-insulator platform

Tianren Fan, Xi Wu, Sai R. M. Vangapandu +3

We report the first demonstration of integrated electro-optic (EO) phase shifters based on racetrack microresonators on a 3C-silicon-carbide-on-insulator (SiCOI) platform working a…