activity
20212026
most citedElectrically reconfigurable phase-change transmissive metasurface

50 citations · 84 across the 10 of their papers we have counts for

collaborators

10 papers

physics.optics2026

Inverse designed resistive heaters for uniform switching of Phase Change Materials

Virat Tara, Khoi P. Dao, Juejun Hu +1

Non-volatile phase-change material (PCM)-integrated metasurfaces offer a promising pathway toward next-generation solid-state reconfigurable free-space optics. However, their pract…

physics.optics2025

Wafer-scale conformal metasurface optics

Louis Martin-Monier, Sehui Chang, Johannes Froech +11

Curved and conformal optics offer significant advantages by unlocking additional geometric degrees of freedom for optical design. These capabilities enable enhanced optical perform…

physics.optics2025★ 1 cited

2D Addressable Mid-infrared Metasurface Spatial Light Modulator

Cosmin-Constantin Popescu, Maarten Robbert Anton Peters, Oleg Maksimov +12

Active metasurfaces enable dynamic control of light for applications in beam steering, pixelated holography, and adaptive optics, but demonstrations of two-dimensional (2D) electri…

physics.optics2024★ 3 cited

Unravelling and circumventing failure mechanisms in chalcogenide optical phase change materials

Cosmin Constantin Popescu, Kiumars Aryana, Brian Mills +17

Chalcogenide optical phase change materials (PCMs) have garnered significant interest for their growing applications in programmable photonics, optical analog computing, active met…

physics.app-ph2024

Thermal Inverse design for resistive micro-heaters

Khoi Phuong Dao, Juejun Hu

This paper proposes an inverse design scheme for resistive heaters. By adjusting the spatial distribution of a binary electrical resistivity map, the scheme enables objective-drive…

physics.optics2024★ 5 cited

Design of an ultra-compact, energy-efficient non-volatile photonic switch based on phase change materials

Khoi Phuong Dao, Juejun Hu, Richard Soref

The on-chip photonic switch is a critical building block for photonic integrated circuits (PICs) and the integration of phase change materials (PCMs) enables non-volatile switch de…