From Polarizability to Effective Permittivity of Time-Varying Materials

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Environmental noise, mostly related to human activities, has an immense impact on public health. The development of noise reduction technologies is paramount in addressing this problem. Because of practical and economic reasons, a compact, broadband, light ...

Invariance under time translation (or stationarity) is probably one of the most important assumptions made when investigating electromagnetic phenomena. Breaking this assumption is expected to open up novel possibilities and result in exceeding conventiona ...

The latest standard "New Dual" power module has been developed for both silicon and silicon-carbide devices to meet the increasing demands in high reliability and high temperature power electronic applications. Due to the new package is just starting to re ...

Quasi-phase-matching has long been a widely used approach in nonlinear photonics, enabling efficient parametric frequency conversions such as second-harmonic generation. However, in silicon photonics the task remains challenging, as materials best suited f ...

The excitation of toroidicity-induced Alfven eigenmodes (TAEs) using prescribed external electromagnetic perturbations (hereafter 'antenna') acting on a confined toroidal plasma, as well as its nonlinear couplings to other modes in the system, is studied. ...

There is today a growing need to accurately model the angular scattering response of metasurfaces for optical analog processing applications. However, the current metasurface modeling techniques are not well suited for such a task since they are limited to ...

This article proposes a swirling actuator that uses the electromagnetic radial force and mechanical gears to generate rotational torque. The proposed actuator generates a rotating radial force between an inner stator and a swirler. The gears on the swirler ...

The pursuit of high-speed and on-chip optical communication systems has promoted extensive exploration of all-optical control of light-matter interactions via nonlinear optical processes. Here, we have numerically investigated the ultrafast dynamic switchi ...

Mitochondrial diseases are rare and severe conditions with debilitating symptoms. Biochemical defects in mitochondria however are common. The difference between these two frequencies is suspected to lie in the capability of the cells to adapt to the homeos ...

Topological semimetals are frequently discussed as materials platforms for future electronics that exploit the remarkable properties of their quasiparticles. These ideas are mostly based on dispersion relations that mimic relativistic particles, such as We ...

Stoichiometric silicon nitride (Si3N4) constitutes a mature platform for integrated photonics. Its pertinent properties, including wide transparency window from the visible to the mid-IR, low propagation loss, and high third-order nonlinearity, are exploit ...

The topic of this thesis is the development of new algorithmic reconstruction methods for quantitative phase imaging (QPI). In the past decade, advanced QPI has emerged as a valuable tool to study label-free biological samples and uncover their 3D structur ...

We present the latest development of our in-house miniature atomic clock (LEMAC). The clock scheme is based on the continuous wave (CW) optical-microwave double resonance (DR) interrogation. Significant efforts have been put in a newly designed miniature m ...

Tunable metamaterials functionalities change in response to external stimuli. Mechanical deformation is known to be an efficient approach to tune the electromagnetic response of a deformable metamaterial. However, in the case of large mechanical deformatio ...

We present a frequency-domain modeling technique for second-order nonlinear metasurfaces. The technique is derived from the generalized sheet transition conditions (GSTCs), which have been so far mostly used for modeling linear metasurfaces. In this work, ...

The interior transmission eigenvalue problem is a system of partial differential equations equipped with Cauchy data on the boundary: the transmission conditions. This problem appears in the inverse scattering theory for inhomogeneous media when, for some ...

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 ...

From Polarizability to Effective Permittivity of Time-Varying Materials

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Plasma-based Electroacoustic Actuator for Broadband Sound Absorption

Dipole polarizability of time-varying particles

Aging investigation of the latest standard dual power modules using improved interconnect technologies by power cycling test

Optically reconfigurable quasi-phase-matching in silicon nitride microresonators

Post Hoc Explainability for Time Series Classification Toward a signal processing perspective

Linear and nonlinear excitation of TAE modes by external electromagnetic perturbations using ORB5

Multipolar Modeling of Spatially Dispersive Metasurfaces

Principle and Analysis of Radial-Force-Based Swirling Actuator for Low-Speed High-Torque Applications

Ultrafast dynamic switching of optical response based on nonlinear hyperbolic metamaterial platform

Mitochondrial respiratory chain dysfunction disrupts intracellular cholesterol homeostasis

Anisotropic and nonlinear transport in microstructured 3D topological semimetals

Electric-field poling of silicon nitride waveguides for the linear phase modulation

Nonlinear Inverse Problems in Quantitative Phase Imaging

LEMAC: LTF-EPFL Miniature Atomic Clock

Effect of mechanical nonlinearity on the electromagnetic response of a microwave tunable metamaterial

Modeling of second-order nonlinear metasurfaces

Spectral analysis for transmission eigenvalue problems with and without the complementing conditions

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