Publications

photonique

Surfactant-Induced Interfacial Anisotropy Governs Polarization-Selective Whispering Gallery Mode Excitation in Dye-Doped Trapped Microdroplets

Sadok Kouz, Qisheng Xu, Naheed Hossain, Aatir Khan, Igor Chaussavoine, Satoko Yoshizawa, Dominique Fourmy, Abdel El Abed

ACS Omega - 2026

Sciences de l'ingénieur

Scaling challenges in microalgae cultivation: environmental effects on biomass productivity

Microalgae are photosynthetic microorganisms that can convert CO₂ into valuable biomass for applications such as nutrition, biofuel production, and wastewater treatment. However, scaling from laboratory to industrial volumes remains empirical and…

Mélanie Pietri, Thomas Rodet, Loriane Alonso, Adeline Suchel, Laura Gutierrez, Émilie Poletti, Reda Hayoun, Jean-José Filippi, Thomas Nowak, Bruno Le Pioufle, Matthias Függer, Sakina Bensalem

International conference on materials & energy - 2026

Sciences de l'ingénieur

Field-localization-driven gas discrimination in porous silicon defect cavities

Porous-silicon photonic crystal cavities are widely used as refractive-index-based optical sensing platforms, but their response is often interpreted through a single observable, typically the resonance wavelength shift. This single-feature readout…

Sadok Kouz, Adel Moadhen, Mohammed Guendouz

Results in engineering - 2026

Biophysique

Adsorption-driven Graphene Oxide SPR Biointerfaces: Coupled Thermodynamic, Kinetic, and Optical Modeling with Effective-layer Validation

This work presents a theoretical modeling framework for adsorption-driven graphene oxide (GO)-functionalized surface plasmon resonance (SPR) biointerfaces. Rather than describing a specific capture-probe biosensor, the model focuses on the effective…

Sadok Kouz

Cell Biochemistry and Biophysics - 2026

Biophysique

Probing -1 ribosomal frameshifting at the single molecule level

Karen Perronet, Baptiste Bouhet, Charles Truong, Sandra Blanchet, Olivier Namy

ESAB 2026 - 2026

Instrumentations et Détecteurs

Fourier-Transform-Based Metrology for Whispering Gallery Mode Spectra in Soft Photonic Microcavities

We present a Fourier-transform (FT)-based framework for quantitative analysis of whispering gallery mode (WGM) spectra in soft photonic microcavities. By treating the WGM spectrum as a quasi-periodic signal, the method enables robust extraction of…

Sadok Kouz, Abdel Abed

Metrology - 2026

photonique

Sensitivity collapse in whispering gallery mode refractometric sensing of porous microspheres: A finite-window mode-misassignment mechanism

Fluorescence-based whispering-gallery-mode (WGM) sensors routinely report refractometric sensitivities far below the intrinsic limit Sintrinsic = λ/neff, yet the origin of this discrepancy has not been rigorously quantified. Here we show that a…

Sadok Kouz, Abdel El Abed

Optics Communications - 2026

photonique

Trade-off and Performance of Optoplasmonic Mesoporous WGM Sensors

Optoplasmonic whispering-gallery-mode (WGM) sensors are often presented as a direct route to enhanced detection limits because localized surface plasmon resonances can create extreme near-field intensities. However, for passive WGM refractometric…

Sadok Kouz, Abdel I El Abed

Journal of the Optical Society of America B - 2026

Biophysique

Molecular engineering of individual dye-based nanoparticle photostability for ultrabright two-photon fluorescence

Eléonore Kurek, Cooper Sasha, Clausolles Alexandre, Karen Perronet, Jonathan Daniel, Mireille Blanchard‐desce, François Marquier

Beilstein Journal of Nanotechnology - 2026

Physique Atomique

Simulation of Rydberg Ionization in Atomic Beams for FIB Optimization

This study explores the excitation and ionization of an atomic beam as a pathway to optimize focused ion beams (FIBs) for high-precision applications. Leveraging the unique advantages of Rydberg excitation followed by field ionization-specifically…

Clélia Bastelica, Azer Trimeche, Colin Lopez, Matthieu Viteau, Patrick Cheinet, Daniel Comparat, Yan J. Picard

Physical Review A - 2026