423 citations · 1.9k across the 23 of their papers we have counts for
12 papers · 1 filter
The 2024 Active Metamaterials Roadmap
Simon A. Pope, Diane J. Roth, Aakash Bansal +27
Active metamaterials are engineered structures that possess novel properties that can be changed after the point of manufacture. Their novel properties arise predominantly from the…
Localised Thermal Emission from Topological Interfaces
M. Said Ergoktas, Ali Kecebas, Konstantinos Despotelis +7
The control of thermal radiation by shaping its spatial and spectral emission characteristics plays a key role in many areas of science and engineering. Conventional approaches to…
Reversible Ionic Liquid Intercalation for Electrically Controlled Thermal Radiation from Graphene Devices
Xiaoxiao Yu, Gokhan Bakan, Hengyi Guo +3
Using graphene as a tuneable optical material enables a series of optical devices such as switchable radar absorbers, variable infrared emissivity surfaces, or visible electrochrom…
Multispectral Electro-Optical Surfaces: from Visible to Microwave
M. Said Ergoktas, Gokhan Bakan, Evgeniya Kovalska +9
Optical materials with colour-changing abilities have been explored for display devices, smart windows, or modulation of visual appearance. The efficiency of these materials, howev…
Video-speed Graphene Modulator Arrays for Terahertz Imaging Applications
Yury Malevich, M. Said Ergoktas, Gokhan Bakan +2
Electrically tuneable high mobility charges on graphene yield an efficient electro-optical platform to control and manipulate terahertz (THz) waves. Real-world applications require…
Multifunctional Biocomposites based on Polyhydroxyalkanoate and Graphene/Carbon-Nanofiber Hybrids for Electrical and Thermal Applications
Pietro Cataldi, Pietro Steiner, Thomas Raine +6
Most polymers are long-lasting and produced from monomers derived from fossil fuel sources. Bio-based and/or biodegradable plastics have been proposed as a sustainable alternative.…
Graphene-based Soft Wearable Antennas
Isidoro Ibanez-Labiano, M. Said Ergoktas, Coskun Kocabas +3
Electronic textiles (e-textiles) are about to face tremendous environmental and resource challenges due to the complexity of sorting, the risk to supplies and metal contamination i…
Hybrid Graphene/Carbon Nanofiber Wax Emulsion for Paper-based Electronics and Thermal Management
Xinhui Wu, Pietro Steiner, Thomas Raine +5
Materials for electronics that function as electrical and/or thermal conductors are often rigid, expensive, difficult to be sourced and sometimes toxic. An electrically and thermal…
Graphene-enabled adaptive infrared textiles
M. Said Ergoktas, Gokhan Bakan, Pietro Steiner +10
Interactive clothing requires sensing and display functionalities to be embedded on textiles. Despite the significant progress of electronic textiles, the integration of optoelectr…
Graphene Based Adaptive Thermal Camouflage
Omer Salihoglu, Hasan Burkay Uzlu, Ozan Yakar +7
In nature adaptive coloration has been effectively utilized for concealment and signaling. Various biological mechanisms have evolved that can tune the reflectivity for visible and…
Controlling phase of microwaves with active graphene surfaces
Osman Balci, Nurbek Kakenov, Coskun Kocabas
In this letter, we report a method to control reflection phase of microwaves using electrically tunable graphene devices. The device consists of mutually gated large-area graphene…
Observation of gate-tunable coherent perfect absorption of terahertz radiation in graphene
Nurbek Kakenov, Osman Balci, Taylan Takan +3
We report experimental observation of electrically-tunable coherent perfect absorption (CPA) of terahertz (THz) radiation in graphene. We develop a reflection-type tunable THz cavi…