Articles techniques et présentations

Proton and Radiotherapy are leading particle therapy tactics used to combat chronic and malignant cancers [1]. Ultra-high dose rate (UHDR) flash therapy is a new treatment modality that is currently being studied by several groups. The treatment delivers high doses in a short period of ... En savoir plus

Perovskite solar cells (PSCs) are a promising photovoltaic technology but their performance remains limited by incomplete absorption of incident photons, primarily due to reflection at the transparent front electrode [1]. To address this issue, interface engineering with graphene-based ... En savoir plus

Energy generation from sunlight is a cornerstone of the renewable energy future. In this context, photovoltaic (PV) modules, particularly those based on silicon, play a central role. However, the lack of circularity in the PV industry could lead to millions of tons of PV waste worldwide ... En savoir plus

Accurate magnetic field simulations are crucial in the design and optimization of advanced electromagnetic systems of the multi-beam mask writers (MBMWs). In MBMW systems, thousands of electron beams are focused with nanoscale precision within a small region close to the axis [μm], while ... En savoir plus

This study presents a numerical investigation of optical butt-coupling between Vertical-Cavity Surface-Emitting Lasers (VCSELs) operating at 850 nm and Standard Single-Mode Fiber (SSMF), a widely adopted configuration in cost-effective, high-speed optical interconnects, especially in ... En savoir plus

Laser-induced photovoltage in ferromagnetic thin films is often explained by magneto-thermoelectric effects such as the anomalous Nernst effect (ANE). ANE appears when thermal gradients interact with magnetization. While power loss in flat films can be estimated analytically, numerical ... En savoir plus

Binary meta-optical structures offer many new possibilities in the efficient manufacturing of products like diffractive beam splitters, phase correction elements, gratings and many more. At JENOPTIK we manufacture a variety of optical elements, based on electron beam lithography (EBL) ... En savoir plus

Black silicon in Figure 1 is a silicon surface engineered with micro- and nanostructures that exhibit strong optical absorption across a broad spectral range due to the light-trapping effect[1]. This unique optical property has made black silicon a promising material for various ... En savoir plus

Wearable devices are drastically transforming the healthcare industry by enabling continuous, real-time monitoring of physiological and biochemical properties outside clinical settings. One particularly important application is the monitoring of stress; a significant factor linked to ... En savoir plus

This work presents a comprehensive modeling and validation study of MEMS-based infrared (IR) emitter chips using a neural network-assisted inverse modeling approach in COMSOL Multiphysics. Starting from a single baseline chip geometry, a simulation model was developed that captures the ... En savoir plus