64 citations · 328 across the 26 of their papers we have counts for
27 papers
A Universal Magnetoelectric Limit for Chiral and Tellegen Bi-Isotropic Scatterers
Jorge Olmos-Trigo
We reveal the existence of a universal upper bound on the magnetoelectric coupling of any bi-isotropic nanoparticle. The bound arises solely from energy conservation, making it ind…
Optical forces, helicity, angular momentum and how they are all intertwined
Iker Gómez-Viloria, Enrique Ayllón García, Jorge Olmos-Trigo +4
The theoretical description of optical forces and torques on micron_sized particles is a crucial area of research and has formed the foundation for advancements in optical trapping…
Detection of Hybrid Optical Anapoles in Dielectric Microspheres
Uttam Manna, Iker Gómez-Viloria, Robert Sevik +4
Nonradiating optical anapoles are special configurations of charge_current distributions that do not radiate. It was theoretically predicted that, for microspheres, electric and ma…
Characterizing the Backscattered Spectrum of Mie Spheres
Martín Molezuelas-Ferreras, Álvaro Nodar, María Barra-Burillo +10
This study describes both experimentally and theoretically an important hitherto undiscovered feature of the scattering of micron_sized spherical objects when illuminated with high…
On-Axis Optical Trapping with Vortex Beams: The Role of the Multipolar Decomposition
Iker Gómez-Viloria, Álvaro Nodar, Martín Molezuelas-Ferreras +5
Optical trapping is a well_established, decades old technology with applications in several fields of research. The most common scenario deals with particles that tend to be center…
An Exact Energy Conservation Law for Magneto-Optical Nanoparticles
Jorge Olmos-Trigo
Energy conservation imposes fundamental bounds on the polarizabilities of nanoparticles (NPs). While such bounds are well established for isotropic and bianisotropic NPs, they rema…
Solving Maxwell's Equations Using Polarimetry Alone
Jorge Olmos-Trigo
Maxwell's equations are solved when the amplitude and phase of the electromagnetic field are determined at all points in space. Generally, the Stokes parameters can only capture th…
The Stokes Vector Measurement
Jorge Olmos-Trigo
The multipolar expansion of the electromagnetic field plays a key role in the study of light-matter interactions. All the information about the radiation and coupling between the i…
Characterizing cylindrical particles upon local measurements of two Stokes parameters
Jon Lasa-Alonso, Iker Gómez-Viloria, Álvaro Nodar +3
Researchers routinely characterize optical samples by computing the scattering cross-section. However, the experimental determination of this magnitude requires the measurement and…
Spheres of maximum electromagnetic chirality
Jorge Olmos-Trigo, Manuel Nieto-Vesperinas, Gabriel Molina-Terriza
The search for objects that yield maximum electromagnetic chirality in their emitted wavefield has garnered significant attention in recent years. However, achieving such maximum c…
Resonant helicity mixing of electromagnetic waves propagating through matter
Jon Lasa-Alonso, Jorge Olmos-Trigo, Chiara Devescovi +3
Dual scatterers preserve the helicity of an incident field, whereas antidual scatterers flip it completely. In this setting of linear electromagnetic scattering theory, we provide…
Capturing near-field circular dichroism enhancements from far-field measurements
Jorge Olmos-Trigo, Jon Lasa-Alonso, Iker Gómez-Viloria +2
Molecular Circular dichroism (CD) spectroscopy faces significant limitations due to the inherent weakness of chiroptical light-matter interactions. In this view, resonant optical a…
Optical mirages from spinless beams
Jorge Olmos-Trigo, Diego R. Abujetas, Cristina Sanz-Fernández +2
Spin-orbit interactions of light are ubiquitous in multiple branches of nanophotonics, including optical wave localization. In that framework, it is widely accepted that circularly…
On the helicity conservation for Mie optical cavities
Jorge Olmos-Trigo, Xavier Zambrana-Puyalto
The study of helicity in the context of light-matter interactions is an increasing area of research. However, some fundamental aspects of the helicity content of light fields insid…
Tailoring accidental double bound states in the continuum in all-dielectric metasurfaces
Diego R. Abujetas, Jorge Olmos-Trigo, José A. Sánchez-Gil
Bound states in the continuum (BICs) have been thoroughly investigated due to their formally divergent Q-factor, especially those emerging in all-dielectric, nanostructured metasur…
Correlations between helicity and optical losses within general electromagnetic scattering theory
Jon Lasa-Alonso, Jorge Olmos-Trigo, Aitzol García-Etxarri +1
Helicity preserving nanostructures and metasurfaces have been recently proposed as suitable candidates to enhance spectroscopic features of chiral matter. With this in mind, we hig…
Challenges on Optical Printing of Colloidal Nanoparticles
Ianina L. Violi, Luciana P. Martinez, Mariano Barella +14
While colloidal chemistry provides ways to obtain a great variety of nanoparticles, with different shapes, sizes, material composition, and surface functions, their controlled depo…
Multiple Kerker anapoles in dielectric microspheres
Cristina Sanz-Fernández, Martín Molezuelas, Jon Lasa-Alonso +3
High refractive index dielectric spheres present remarkable light-scattering properties in the spectral range dominated by dipolar modes. However, most of these properties are abse…
Size-Selective Optical Printing of Silicon Nanoparticles through Their Dipolar Magnetic Resonance
Cecilia Zaza, Ianina L. Violi, Julián Gargiulo +11
Silicon nanoparticles possess unique size-dependent optical properties due to their strong electric and magnetic resonances in the visible range. However, their widespread applicat…
Kerker Conditions Upon Lossless, Absorption, and Optical Gain Regimes
Jorge Olmos-Trigo, Cristina Sanz-Fernández, Diego R. Abujetas +6
The directionality and polarization of light show peculiar properties when the scattering by a dielectric sphere can be described exclusively by electric and magnetic dipolar modes…
Coupled electric and magnetic dipole formulation for planar arrays of dipolar particles: metasurfaces with various electric and/or magnetic meta-atoms per unit cell
Diego Romero Abujetas, Jorge Olmos-Trigo, Juan José Sáenz +1
The optical properties of infinite planar array of scattering particles, metasurfaces and metagratings, are attracting special attention lately for their rich phenomenology, includ…
Unveiling dipolar spectral regimes of large dielectric Mie spheres from helicity conservation
Jorge Olmos-Trigo, Diego R. Abujetas, Cristina Sanz-Fernández +3
Controlling the electromagnetic helicity and directionality of the light scattered by dielectric particles is paramount to a variety of phenomenology of interest in all-dielectric…
Scattering asymmetry and second Kerker condition
Jorge Olmos-Trigo, Diego Romero Abujetas, Cristina Sanz Fernández +2
The nearly zero optical forward scattering and anti-dual conditions are usually associated to the so-called second Kerker condition, at which the electric and magnetic responses ar…
Sectoral Multipole Focused Beams
Jorge Olmos-Trigo, Rafael Delgado-Buscalioni, Marc Melendez +1
We discuss the properties of pure multipole beams with well-defined handedness or helicity, with the beam field a simultaneous eigenvector of the squared total angular momentum and…