A5090572807- Plasmonic and Surface Plasmon Research
- Diamond and Carbon-based Materials Research
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Graphene research and applications
- Piezoelectric Actuators and Control
- Electromagnetic Scattering and Analysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Geophysical Methods and Applications
- Topology Optimization in Engineering
- Boron and Carbon Nanomaterials Research
- Electromagnetic Simulation and Numerical Methods
- Optical Coatings and Gratings
- Quantum and electron transport phenomena
- Surface Roughness and Optical Measurements
- Advanced Fiber Laser Technologies
- melanin and skin pigmentation
Purdue University West Lafayette
2022-2023
Military University of Technology in Warsaw
2023
Institute of Physics
2023
Nicolaus Copernicus University
2023
The negatively charged boron vacancy (VB-) defect in hexagonal nitride (hBN) with optically addressable spin states has emerged due to its potential use quantum sensing. Remarkably, VB- preserves coherence when it is implanted at nanometer-scale distances from the hBN surface, potentially enabling ultrathin sensors. However, low efficiency hinders practical applications. Studies have reported improving overall of defects plasmonics; however, enhancements up 17 times date are relatively...
Abstract Multilayer films with continuously varying indices for each layer have attracted great deal of attention due to their superior optical, mechanical, and thermal properties. However, difficulties in fabrication limited application study scientific literature compared multilayer fixed index layers. In this work we propose a neural network based inverse design technique enabled by differentiable analytical solver realistic single material variable-index films. This approach generates...
Abstract A sustainable, lithography‐free process is demonstrated for generating non fading plasmonic colors with a prototype device that produces wide range of vivid in red, green, and blue (RGB) ([0‐1], [0‐1], [0‐1]) color space from violet (0.7, 0.72, 1) to (0.31, 0.80, green (0.84, 1, 0.58) orange (1, 0.58, 0.46). The proposed color‐printing architecture integrates semi‐transparent random metal film (RMF) back mirror create lossy asymmetric Fabry‐Pérot resonator. This geometry allows...
Two-dimensional hexagonal boron nitride (hBN) has been known to host a variety of quantum emitters with properties suitable for broad range photonic applications. Among them, the negatively charged vacancy (VB-) defect optically addressable spin states emerged recently due its potential use in sensing. Compared defects bulk crystals, VB- preserves coherence when placed at nanometer-scale distances from hBN surface, enabling On other hand, low efficiency hindered practical Several studies...
We present a Mini-Max-Optimized Semi-analytical Approximation (MiMOSA) method to efficiently model the convolution type of dispersion in time-domain electromagnetic and multiphysics solvers. The is based on an efficient (only 2 or 3 poles) accurate minimax rational approximation. discuss representative case for this material class - disordered materials exhibiting inhomogeneous broadening with Voight absorption profiles. Accurate experimental-based modeling time domain was unavailable,...
We demonstrate a sustainable, lithography-free process for generating non fading plasmonic colors with prototype device that produces wide range of vivid in red, green, and blue (RGB) ([0-1], [0-1], [0-1]) color space from violet (0.7, 0.72, 1) to (0.31, 0.80, green (0.84, 1, 0.58) orange (1, 0.58, 0.46). The proposed color-printing architecture integrates semi-transparent random metal film (RMF) back mirror create lossy asymmetric Fabry-P\'erot resonator. This geometry allows advanced...
We demonstrate a wide gamut of color generation by large-scale, lithography-free, and environment-friendly plasmonic structures with resolution 100 μm for macroscopic printing utilizing femtosecond laser photomodification multi-functional optical elements.
We report a 250-fold photoluminescence enhancement of V B - spin-defects in hBN by coupling them to nanopatch antennas (NPA). Considering the relative size NPAs and laser-spot, an actual 1695 times is determined.
Absorption in optical materials is often approximated with a Lorentzian <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$1/(1+\omega^{2})$</tex> lineshape. The Lorenz oscillators, however, represent simplified dispersion mechanism, where all the individual microscopic oscillators are coherent, and lineshape broadening homogeneous (given constant xmlns:xlink="http://www.w3.org/1999/xlink">$\Gamma$</tex> ). This type of approximation valid for...