A5036296793- Photonic and Optical Devices
- Semiconductor Quantum Structures and Devices
- Nanowire Synthesis and Applications
- Advanced optical system design
- Fern and Epiphyte Biology
- Orbital Angular Momentum in Optics
- Diamond and Carbon-based Materials Research
- Advanced Memory and Neural Computing
- Force Microscopy Techniques and Applications
- Infrared Target Detection Methodologies
- Advanced Measurement and Detection Methods
- RNA Interference and Gene Delivery
- High-pressure geophysics and materials
- Neuroscience and Neural Engineering
- Neural Networks and Reservoir Computing
- Molecular Junctions and Nanostructures
- Carbon Nanotubes in Composites
- GaN-based semiconductor devices and materials
- Advanced biosensing and bioanalysis techniques
- Optical Coatings and Gratings
International Iberian Nanotechnology Laboratory
2021-2024
Intracellular sensing technologies necessitate a delicate balance of spatial resolution, sensitivity, biocompatibility, and stability. While existing methods partially fulfill these criteria, none offer comprehensive solution. Nanodiamonds (NDs) harboring nitrogen-vacancy (NV) centers have emerged as promising candidates due to their capabilities under biological conditions ability meet all aforementioned requirements. This study focuses on expanding the application NDs NV center-based...
Lenses are ubiquitous elements in any optical system. With technological advances and the widespread use of systems fields such as communication, medical imaging, computer vision, sensing, creation that smaller, lighter, reliable over a broad-spectrum is key interest. Flat meta lenses try to answer demand for solutions. However, these structures known being highly wavelength-dependent due their diffraction-based operation. In this work, we present set binary phase Fresnel zone plates with an...
Lenses are ubiquitous elements in any optical system. With technological advances and the widespread use of systems fields such as communication, medical imaging, computer vision, sensing, creation that smaller, lighter, reliable over a broad-spectrum is key interest. Flat meta lenses try to answer demand for solutions. However, these structures known being highly wavelength-dependent due their diffraction-based operation. In this work, we present set binary phase Fresnel zone plates with an...
Numerous efforts have been devoted to improve the electronic and optical properties of III–V compound materials via reduction their nonradiative states, aiming at highly efficient sub-micrometer active devices circuits. Despite many advances, poor reproducibility short-term passivation effect chemical treatments, such as sulfidation nitridation, requires use protective encapsulation methods, not only protect surface, but also provide electrical isolation for device manufacturing. There is...
The twentieth-century semiconductor revolution began with “man-made crystals,” or p - n junction-based heterostructures. This was the most significant step in creation of light-emitting diodes (LEDs), lasers, and photodetectors. Nonetheless, advances where resistive -type doping is completely avoided could pave way for a new class optoelectronic emitters detectors to mitigate increase contact resistance optical losses submicrometer devices, e.g., nanoLEDs nanolasers. Here, we show that...
Abstract A modified diamond–photonics based metrology is proposed to explore the magnetic fields created by agglomerates of nanoparticles (MNPs). MNPs are promising for environmental and medical applications; those cancer hyperthermia treatments small superparamagnetic <20 nm iron oxide particles. Inside cells, they assemble in larger MNP agglomerates, reaching cross‐sections several micrometers. Here, these conditions reproduced immobilized. Optically detected resonance (ODMR) signals...
Abstract A proof‐of‐principle device for axial high‐resolution operation that combines a deoxyribonucleic acid (DNA) origami with functionalized graphene layer is presented, analyzed by nanoscopy. Along the DNA structure, ATTO‐488 fluorophores are bound at specific distances from graphene, where fluorescence lifetime values expected due to nearfield energy transfer processes. These characterized Fluorescence Lifetime Imaging Microscopy (FLIM). Through modulation of electrostatic potential...
Arbitrarily designed flat optics directly manipulate the light wavefront to reproduce complex optical functions, enabling more compact assemblies and microsystem integration. Phase-shifting micro-optical devices rely on locally tailoring path length of through binary or multilevel surface relief micro- nanostructures. Considering resolution tolerances production processes properties substrate coating materials is crucial for designing robust diffractive optics. In this work, we evaluate...
Event-activated biological-inspired subwavelength (sub-λ) optical neural networks are of paramount importance for energy-efficient and high-bandwidth artificial intelligence (AI) systems.Despite the significant advances to build active neurons using example phase-change materials, lasers, photodetectors, modulators, miniaturized integrated sources detectors suited few-photon spike-based operation interest neuromorphic computing still lacking.In this invited paper we outline main challenges,...
The III-V heterostructure based on the p-n junction is probably one of most established semiconductor optoelectronic technology that revolutionized development light-emitting diodes (LEDs), lasers and photodetectors. Nonetheless, given recent miniaturization detector devices (e.g. micro- nanoscale LEDs [1], nanolasers, nanophotodetectors), use resistive p-type doping plays a crucial role devices' overall resistance optical losses. Importantly, p-doping adds substantial cost complexity to...
Nanolight sources employing III-V GaAs semiconductor materials as the gain medium are crucial for fabrication of miniaturized optical such nanoLEDs and nanolasers with emerging applications in 3D sensing, data communication, spectroscopy, medical diagnosis even neuromorphic computing [1] . However, surfaces GaAs-based compounds their interfaces dielectrics tend to host large densities electronically active defects. Particularly, when devices scaled deep subwavelength size (<<1 µm), a...