A5061411271- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Perovskite Materials and Applications
- Plasmonic and Surface Plasmon Research
- Housing Market and Economics
- Advanced Fiber Laser Technologies
- Nanowire Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Accounting Theory and Financial Reporting
- Advanced Surface Polishing Techniques
- Advanced MEMS and NEMS Technologies
- Financial Reporting and Valuation Research
- Semiconductor Lasers and Optical Devices
- Optical Coatings and Gratings
- Neural Networks and Reservoir Computing
- Proteins in Food Systems
- Surfactants and Colloidal Systems
- Advancements in Photolithography Techniques
- Optical properties and cooling technologies in crystalline materials
- Coral and Marine Ecosystems Studies
- Optical and Acousto-Optic Technologies
- Polish socio-economic development
- Local Governance and Planning
- Pickering emulsions and particle stabilization
- Nanofabrication and Lithography Techniques
AMO (Germany)
2017-2023
RWTH Aachen University
2018-2019
Centre National de la Recherche Scientifique
2019
Laboratoire Interdisciplinaire Carnot de Bourgogne
2019
Université de Bourgogne
2019
Abstract Cesium lead halide perovskites are of interest for light‐emitting diodes and lasers. So far, thin‐films CsPbX 3 have typically afforded very low photoluminescence quantum yields (PL‐QY < 20%) amplified spontaneous emission (ASE) only at cryogenic temperatures, as defect related nonradiative recombination dominated room temperature (RT). There is a current belief that, efficient light from RT, the charge carriers/excitons need to be confined on nanometer scale, like in...
Metal-halide perovskites are promising lasing materials for realization of monolithically integrated laser sources, the key components silicon photonic circuits (PICs). Perovskites can be deposited from solution and require only low temperature processing leading to significant cost reduction enabling new PIC architectures compared state-of-the-art lasers realized through costly inefficient hybrid integration III-V semiconductors. Until now however, due chemical sensitivity perovskites, no...
Metal-halide perovskites are a class of solution processed materials with remarkable optoelectronic properties such as high photoluminescence quantum yields and long carrier lifetimes, which makes them promising for wide range efficient photonic devices. In this work, we demonstrate the first successful integration perovskite laser onto silicon nitride chip. High throughput, low cost optical lithography is used, followed by indirect structuring waveguide. We embed methylammonium lead...
The unique behavior of colloids at liquid interfaces provides exciting opportunities for engineering the assembly colloidal particles into functional materials. deformable nature fluid-fluid means that we can use interfacial curvature, in addition to particle properties, direct self-assembly. To this end, a finite element method (Surface Evolver) study self-assembly rod-shaped adsorbed simple curved interface formed by sessile drop with cylindrical geometry. Specifically, single and multiple...
We present a new optical biosensing integration approach with multifunctional capabilities using plasmonic and photonic components on the same chip methodology to design interferometric biosensors exhibiting record high sensitivity enhanced resolution relying planar surface plasmon polariton (SPP) waveguide. First, we use this demonstrate proof of concept integrated plasmo-photonic liquid refractive index sensor based silicon nitride (Si3N4) Mach–Zehnder Interferometer (MZI). A 70 μm long,...
We demonstrate a photonic integrated Mach-Zehnder interferometric sensor, utilizing plasmonic stripe waveguide in the sensing branch and variable optical attenuator phase shifter reference arm to optimize interferometer operation. The sensor is used detect changes refractive index of surrounding medium exploiting accumulated change propagating Surface-Plasmon-Polariton (SPP) mode that fully exposed an aqueous buffer solution. attenuation stage incorporated Si3N4 branch, as means...
Perovskite nanophotonics is a rapidly emerging field that combines research in synthesis of materials with novel properties and photonics design strategies. Starting from early pioneering works on halide perovskite compounds showed great potential across optoelectronics applications, the ready to blossom by combining recent advances synthetic material design, development bottom-up or top-down nanostructuring approaches new concepts nanohophotonic engineering light matter interaction at...
Optical refractive-index sensors exploiting selective co-integration of plasmonics with silicon photonics has emerged as an attractive technology for biosensing applications that can unleash unprecedented performance breakthroughs reaps the benefits both technologies. However, towards this direction, a major challenge remains their integration using exclusively CMOS-compatible materials. In context, herein, we demonstrate, first time to our knowledge, plasmo-photonic...
We present a technology platform supported by anew process design kit (PDK) that integrates two types of aluminum plasmonic waveguides with Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> photonics towards CMOS-compatible plasmo-photonic integrated circuits for sensing applications. More specifically, we demonstrate the fabrication slot waveguide via e-beam lithography (EBL) on top...
We present a four level Si microstructure fabrication process with depths ranging from 70-400 μm. All levels are etched the same side, by using hard masks (SiO2, Al, AZ4562 photo resist, and Al). The choice of their relative selectivity will be discussed. Also two different deep reactive ion etching (DRIE) processes, performed in machines, compared evaluated. evaluation discussions based on vertical walls deviation right angle, surface roughness resolution. In end, solution is proposed to...
Designing optoelectronic devices based on cesium lead chloride (CsPbCl${_3}$) perovskites requires accurate values of their optical constants. Unfortunately, experimental data for this material is very limited thus far. Therefore, here, we applied spectroscopic ellipsometry (SE) to measure the complex constants thermally evaporated CsPbCl${_3}$ thin films with different thicknesses Si/SiO${_2}$ substrates. The were corroborated scanning electron microscopy (SEM) images and absorption...
Metal-halide perovskites (MHPs) have exciting optoelectronic properties and are under investigation for various applications, such as photovoltaics, light-emitting diodes, lasers. An essential step toward exploiting the full potential of this class materials is their large-scale, on-chip integration with high-resolution, top-down patterning. The development patterning methods perovskite films challenging because ionic behavior adverse reactions solvents used in standard lithography...
Silicon photonic integrated circuits (PICs) require cost-effective laser sources that can be monolithically integrated. The low cost and low-temperature solution processability of metal halide perovskites (MHPs) make them attractive alternatives to established III-V compound semiconductors for on-chip in PICs. Cesium lead bromide (CsPbBr$_3$) are emerging materials green light-emitting diodes lasers. To date, amplified spontaneous emission (ASE) at room temperature has been frequently...
Metal-halide perovskites, low-cost solution processed semiconductors, have been successfully demonstrated in various optoelectronic devices, including optically pumped continuous wave lasers [1]. Straight forward deposition by spin coating [2] makes them an interesting choice for integrated micro/nano optoelectronics.
Optical refractive index (RI) sensors exploiting selective co-integration of plasmonics with silicon photonics in Lab-on-achip configurations are expected to disrupt Point-of-Care (POC) diagnostics, delivering performance and economic breakthroughs. Propagating surface-plasmon-polariton modes offer superior sensitivity due their extreme overlap the surrounding medium. In parallel, low-loss act as hosting platform which plasmonic losses can be sustained while allowing for multiplexed layouts...
Silicon nitride (Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> ) waveguide platforms [1,2] are interesting candidates for optical interconnects and sensing applications [3] thanks to high quality passive components, transparency NIR visible wavelengths their compatibility with CMOS process technology. Unfortunately, no native light sources available Si the integration of active...
We demonstrate an interferometric plasmo-photonic sensor based on Si 3 N 4 photonic waveguides and gold Surface Plasmon Polariton waveguides. The proposed approach exhibits bulk sensitivity up to 1930 nm/RIU, holding promise for compact ultra-sensitive sensing devices. © 2019 Author(s)
Integration of plasmonic waveguides with low-loss photonic platforms have attracted research efforts as the means to benefit from extra-ordinary features plasmonics while enhancing functional portfolio Photonic Integrated Circuits (PICs). In this work, we review a technology platform that integrates water cladded integrated in Si <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> N xmlns:xlink="http://www.w3.org/1999/xlink">4</inf>...
We demonstrate an interferometric plasmo-photonic sensor based on Si3N4 photonic waveguides and gold Surface Plasmon Polariton waveguides. The proposed approach exhibits bulk sensitivity up to 1930 nm/RIU, holding promise for compact ultra-sensitive sensing devices.