255 citations · 327 across the 8 of their papers we have counts for
9 papers
Inverse design of poles and zeros: tailoring phase control in metasurfaces
Junhe Zhang, Seoyoung Kim, Hyun Jung Kim +1
We develop a physically interpretable inverse-design framework for generalized Huygens metasurfaces, using prescribed scattering poles and zeros to engineer resonance interference…
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…
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…
Robust electrothermal switching of optical phase change materials through computer-aided adaptive pulse optimization
Parth Garud, Kiumars Aryana, Cosmin Constantin Popescu +6
Electrically tunable optical devices present diverse functionalities for manipulating electromagnetic waves by leveraging elements capable of reversibly switching between different…
Electrically reconfigurable phase-change transmissive metasurface
Cosmin Constantin Popescu, Kiumars Aryana, Parth Garud +12
Programmable and reconfigurable optics hold significant potential for transforming a broad spectrum of applications, spanning space explorations to biomedical imaging, gas sensing,…
Versatile spaceborne photonics with chalcogenide phase-change materials
Hyun Jung Kim, Matthew Julian, Calum Williams +6
Recent growth in space systems has seen increasing capabilities packed into smaller and lighter Earth observation and deep space mission spacecraft. Phase-change materials (PCMs) a…
An Open-Source Multi-functional Testing Platform for Optical Phase Change Materials
Cosmin-Constantin Popescu, Khoi Phuong Dao, Luigi Ranno +18
Owing to their unique tunable optical properties, chalcogenide phase change materials are increasingly being investigated for optics and photonics applications. However, in situ ch…
Toward accurate thermal modeling of phase change material based photonic devices
Kiumars Aryana, Hyun Jung Kim, Cosmin-Constantin Popescu +5
Reconfigurable or programmable photonic devices are rapidly growing and have become an integral part of many optical systems. The ability to selectively modulate electromagnetic wa…
Active metasurfaces: lighting the path to commercial success
Tian Gu, Hyun Jung Kim, Clara Rivero-Baleine +1
Active optical metasurfaces are rapidly emerging as a major frontier in photonics research, development, and commercialization. They promise compact, light-weight, and energy-effic…