295 citations · 635 across the 20 of their papers we have counts for
21 papers
Tunable hyperbolic metamaterials for brightening single-photon emission
Manobina Karmakar, Pavel Klok, Filip Ligmajer +1
Hyperbolic metamaterials (HMMs) are widely used to enhance spontaneous emission through their exceptionally large photonic density of states, yet large Purcell factors (>100) rarel…
Dual-Gradient Plasmonic qBIC Metasurface for Time-Resolved In Situ Optimization of Molecular Vibrational Sensing in Water
Tao Jiang, Michael Hirler, Lina Rohrer +8
Metaphotonic platforms based on quasi-bound states in the continuum (qBICs), harnessing strong near-field enhancement and deeply subwavelength field confinement, provide a versatil…
Enantioselective optical trapping and characterization of all dielectric disorder-enabled chiral particles
Guilherme T. Moura, Tanja Schoger, Kainã G. Diniz +9
We trap submicroscopic silica spheres coated with randomly distributed titanium dioxide nanoparticles in optical tweezers with Laguerre-Gaussian modes and observe orbital dynamics…
Rewritable Chirality of Metasurfaces with Permittivity-Asymmetric Flatband Quasi-Bound States in the Continuum
Tao Jiang, Haiyang Hu, Dmytro Gryb +4
Flatband eigenstates are widely applied to enhance angle-robust light-matter interactions in metaphotonics. However, controlling the polarization of flatbands remains challenging,…
Integration of 2D Materials in Radial van der Waals Heterostructure Metasurfaces
Connor Heimig, Jonas Biechteler, Cristina Cruciano +12
Two-dimensional semiconductors, such as monolayer transition metal dichalcogenides (TMDC), exhibit strong excitonic transitions at room temperature and offer a unique platform for…
Boltzmann Thermometry at Cryogenic Temperatures Exploiting Stark Sublevels in Er/Yb-Codoped Yttrium Oxide Nanoparticles
Thomas Possmayer, Allison R. Pessoa, Jefferson A. O. Galindo +4
The development of reliable luminescent nanothermometers for cryogenic applications is essential for advancing quantum technologies, superconducting systems, and other fields that…
Addressing Discrepancies Between Theory and Experiments in Boltzmann Luminescence Thermometry with Ln3+ Ions
Allison R. Pessoa, Leonardo de S. Menezes, Anderson M. Amaral
Trivalent lanthanide ion-doped nanoparticles are widely employed as nanoscale thermometers, driving rapid advancements in real-world applications. When the Luminescence Intensity R…
Van der Waals heterostructure metasurfaces: atomic-layer assembly of ultrathin optical cavities
Luca Sortino, Jonas Biechteler, Lucas Lafeta +5
Photonics has been revolutionized by breakthroughs in optical metasurfaces and layered two-dimensional materials. Yet, integrating these two fields in a singular system has remaine…
Coherent Acoustic Phonons in Plasmonic Nanoparticles: Elastic Properties and Dissipation at Low Temperatures
Hilario D. Boggiano, Thomas Possmayer, Luis Morguet +7
We studied the frequency and quality factor of mechanical plasmonic nanoresonators as a function of temperature, ranging from ambient to 4 K. Our investigation focused on individua…
Si Metasurface Supporting Multiple Quasi-BICs for Degenerate Four-Wave Mixing
Gianni Q. Moretti, Thomas Weber, Thomas Possmayer +6
Dielectric metasurfaces supporting quasi-bound states in the continuum (qBICs) enable high field enhancement with narrow-linewidth resonances in the visible and near-infrared range…
Emergent resonances in a thin film tailored by optically-induced small permittivity asymmetries
Rodrigo Berté, Thomas Possmayer, Andreas Tittl +2
Resonances are usually associated with finite systems - the vibrations of clamped strings in a guitar or the optical modes in a cavity defined by mirrors. In optics, resonances may…
Active Loss Engineering in Vanadium Dioxide Based BIC Metasurfaces
Andreas Aigner, Filip Ligmajer, Katarína Rovenská +5
Metasurfaces have unlocked significant advancements across photonics, yet their efficient active control remains challenging. The active materials required often lack continuous tu…
Nonlinear dielectric epsilon near-zero hybrid nanogap antennas
Romain Tirole, Benjamin Tilmann, Leonardo de S. Menezes +3
High-index Mie-resonant dielectric nanostructures provide a new framework to manipulate light at the nanoscale. In particular their local field confinement together with their inhe…
Active Huygens' metasurface based on in-situ grown conductive polymer
Wenzheng Lu, Leonarde de S. Menezes, Andreas Tittl +2
Active metasurfaces provide unique advantages for on-demand light manipulation at a subwavelength scale for emerging applications of 3D displays, augmented/virtual reality (AR/VR)…
Radiative suppression of exciton-exciton annihilation in a two-dimensional semiconductor
Luca Sortino, Merve Gülmüs, Benjamin Tilmann +2
Two-dimensional (2D) semiconductors possess strongly bound excitons, opening novel opportunities for engineering light-matter interaction at the nanoscale. However, their in-plane…
Metafiber transforming arbitrarily structured light
Chenhao Li, Torsten Wieduwilt, Fedja J. Wendisch +5
Structured light has proven useful for numerous photonic applications. However, the current use of structured light in optical fiber science and technology is severely limited by m…
Unlocking the out-of-plane dimension for photonic bound states in the continuum to achieve maximum optical chirality
Lucca Kühner, Fedja J. Wendisch, Alexander A. Antonov +7
The realization of lossless metasurfaces with true chirality crucially requires the fabrication of three-dimensional structures, constraining their feasibility for experiments and…
Nonlinear refractive index of electric field aligned gold nanorods measured with a Hartmann-Shack wavefront aberrometer
Melissa Maldonado, Leonardo de S. Menezes, Leonardo F. Araujo +5
The capability to dynamically control the nonlinear refractive index of plasmonic suspensions may enable innovative nonlinear sensing and signaling nanotechnologies. Here, we exper…
Turbulence Hierarchy in a Random Fibre Laser
Iván R. Roa González, Bismarck C. Lima, Pablo I. R. Pincheira +7
Turbulence is a challenging feature common to a wide range of complex phenomena. Random fibre lasers are a special class of lasers in which the feedback arises from multiple scatte…
Random Fiber Laser
Christiano J. S. de Matos, Leonardo de S. Menezes, Antônio M. Brito-Silva +3
We investigate the effects of two dimensional confinement on the lasing properties of a classical random laser system operating in the incoherent feedback (diffusive) regime. A sus…
Controlled photon transfer between two individual nanoemitters via shared high-Q modes of a microsphere resonator
S. Gotzinger, L. de S. Menezes, A. Mazzei +3
We realize controlled cavity-mediated photon transfer between two single nanoparticles over a distance of several tens of micrometers. First, we show how a single nanoscopic emitte…