New Sensing Technologies for Monitoring Machinery, Structures, and Manufacturing Processes

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The advent of metamaterials, e.g. artificially structured materials with physical properties significantly distinct from their bulk counterparts, has ushered in new perspectives in materials science and photonics, and constitutes today a new research front ...

Far field superlensing of light has generated great attention in optical focusing and imaging applications. The capability of metamaterials to convert evanescent waves to propagative waves has led to numerous proposals in this regard. The common drawback o ...

At the nanoscale level, optical properties of materials depend greatly on their shape. Finding the right geometry for a specific property remains a fastidious and long task, even with the help of modelling tools. In this work, we overcome this challenge by ...

Novel two-dimensional metamaterials, known as metasurfaces, have emerged as a breakthrough platform for controlling electromagnetic wave properties at the nanoscale. These metasurfaces consist of subwavelength nanoantennas or so-called meta-atoms, which ca ...

In this thesis, the electromagnetic wave propagation is studied in nonstationary-medium scenarios. The electromagnetic fields under material time-modulation are shown to conserve their momentum but not their energy. The mathematical foundations and analysi ...

A passive device comprising a hollow waveguide including first and second wall structures extending in a guiding direction, an interconnecting base extending between the wall structures and an enclosure extending between the wall structures, the enclosure ...

Metasurfaces have emerged as a breakthrough platform for manipulating light at the nanoscale and enabling on-demand optical functionalities for next-generation biosensing, imaging, and light-generating photonic devices. However, translating this technology ...

Dielectric metasurfaces have shown prominent applications in nonlinear optics due to strong field enhancement and low dissipation losses at the nanoscale. Chalcogenide glasses are one of the promising materials for the observation of nonlinear effects than ...

We investigate cloaking property of negative-index metamaterials in the time-harmonic electromagnetic setting for the so-called doubly complementary media. These are media consisting of negative-index metamaterials in a shell (plasmonic structure) and posi ...

Radiation from magnetic and electric dipole moments is a key subject in the theory of electrodynamics. Although people treat the problem thoroughly in the context of the frequency domain, the problem is still not well understood in the context of the time ...

A transmission-line acoustic metamaterial is an engineered, periodic arrangement of relatively small unit-cells, the acoustic properties of which can be manipulated to achieve anomalous physical behaviours. These exotic properties open the door to practica ...

New Sensing Technologies for Monitoring Machinery, Structures, and Manufacturing Processes

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Novel Insights into Thin Film Instabilities: From Fundamentals to Metamaterial Applications

Far field superlensing inside biological media through a nanorod lens using spatiotemporal information

Successive training of a generative adversarial network for the design of an optical cloak

Metasurfaces for label-free biosensing mid-infrared optics and active photonic devices

Electromagnetic waves under nonstationary conditions, the connection with parity-time symmetry and studies on resonant systems

Microwave or millimeter wave passive components or devices

Wafer‐Scale Functional Metasurfaces for Mid‐Infrared Photonics and Biosensing

Second harmonic generation in glass-based metasurfaces using tailored surface lattice resonances

Cloaking property of a plasmonic structure in doubly complementary media and three-sphere inequalities with partial data

Instantaneous radiation from time-varying electric and magnetic dipoles

Exploiting the leaky-wave properties of transmission-line metamaterials for single-microphone direction finding