Joe Shields
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View article: The 2025 Active Metamaterials Roadmap
The 2025 Active Metamaterials Roadmap Open
Active metamaterials are engineered structures that possess novel properties that can be changed after the point of manufacture. Their novel properties arise predominantly from their physical structure, as opposed to their chemical composi…
View article: Nonlocal phase-change metaoptics for reconfigurable nonvolatile image processing
Nonlocal phase-change metaoptics for reconfigurable nonvolatile image processing Open
View article: Dynamically reconfigurable 2D polarization-agnostic image edge-detection using nonvolatile phase-change metasurfaces
Dynamically reconfigurable 2D polarization-agnostic image edge-detection using nonvolatile phase-change metasurfaces Open
The development of novel, compact, and reconfigurable devices for optical analog computing would pave the way for the next generation of imaging systems free from high power consumption electronics and computationally demanding processing …
View article: The 2024 Active Metamaterials Roadmap
The 2024 Active Metamaterials Roadmap Open
Active metamaterials are engineered structures that possess novel properties that can be changed after the point of manufacture. Their novel properties arise predominantly from their physical structure, as opposed to their chemical composi…
View article: Nonlocal phase-change metaoptics for reconfigurable nonvolatile image processing
Nonlocal phase-change metaoptics for reconfigurable nonvolatile image processing Open
The next generation of smart imaging and vision systems will require compact and tunable optical computing hardware to perform high-speed and low-power image processing. These requirements are driving the development of computing metasurfa…
View article: A Route to Ultra‐Fast Amplitude‐Only Spatial Light Modulation using Phase‐Change Materials (Advanced Optical Materials 18/2023)
A Route to Ultra‐Fast Amplitude‐Only Spatial Light Modulation using Phase‐Change Materials (Advanced Optical Materials 18/2023) Open
Controlling both the amplitude and phase of optical wavefronts has many important applications-beam steering, image processing, optical computing, and more. Conventional approaches to wavefront control include liquid crystal spatial light …
View article: A Route to Ultra‐Fast Amplitude‐Only Spatial Light Modulation using Phase‐Change Materials
A Route to Ultra‐Fast Amplitude‐Only Spatial Light Modulation using Phase‐Change Materials Open
A phase‐change material based, thin‐film, amplitude‐only spatial light modulator is presented. The modulator operates in reflection and modulates the amplitude of light incident on its surface with no effect on optical phase when the phase…
View article: Overcoming optical performance and diffusion issues in thermally tunable phase-change metasurfaces
Overcoming optical performance and diffusion issues in thermally tunable phase-change metasurfaces Open
This is the author accepted manuscript. The final version is available from IEEE via the DOI in this record
View article: Enhanced Performance and Diffusion Robustness of Phase-Change Metasurfaces via a Hybrid Dielectric/Plasmonic Approach
Enhanced Performance and Diffusion Robustness of Phase-Change Metasurfaces via a Hybrid Dielectric/Plasmonic Approach Open
Materials of which the refractive indices can be thermally tuned or switched, such as in chalcogenide phase-change alloys, offer a promising path towards the development of active optical metasurfaces for the control of the amplitude, phas…
View article: Tunable optical metasurfaces enabled by chalcogenide phase-change materials: from the visible to the THz
Tunable optical metasurfaces enabled by chalcogenide phase-change materials: from the visible to the THz Open
Metasurfaces and nanoantennas are redefining what can be achieved in terms of optical beam manipulation, as they provide a versatile design platform towards moulding the flow of light at will. Yet, once a conventional metasurface is design…