7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Complutense de MadridES198 papers
- Universidad Autónoma de MadridES177 papers
- Centre National de la Recherche ScientifiqueFR103 papers
- IMDEA MaterialsES100 papers
- Universidad Carlos III de MadridES86 papers
- Universidad Rey Juan CarlosES81 papers
- Consejo Superior de Investigaciones CientíficasES61 papers
- Institute of Mathematical SciencesIN57 papers
- Universitat de ValènciaES45 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR39 papers
- IMDEA Software InstituteES38 papers
- Université Paris-SaclayFR34 papers
52 papers · 1 filter
Non-diffracting meronic spin defects of light
Nilo Mata-Cervera, Miguel A. Porras, Yijie Shen
Optical vortices are singularity lines where the light field intensity vanishes and its phase is undefined. These threads of darkness are adorned by Gauss's law as lines of pure lo…
Unfolding unstable skyrmionic polarization textures
Nilo Mata-Cervera, Zhenyu Guo, Yijie Shen
Polarization of light can form skyrmionic textures, akin to nonlinear solitons in condensed matter, yet their disparate physical context has motivated extensive debate regarding th…
GaN mid-IR plasmonics: low-loss epsilon-near-zero modes
Julia Inglés-Cerrillo, Maria Villanueva-Blanco, Benjamin Damilano +3
Epsilon-near-zero (ENZ) materials, defined by , enable unique light propagation characteristics, including confinement within sub-wavelength regions. To reduce loss…
Near Field Enhancement via Plasmon Phonon Polariton Coupling with CdO Stripes
Pablo Ibañez-Romero, Maria Villanueva-Blanco, Javier Yeste +5
The mid-infrared spectral region presents significant potential for sensing and spectroscopic applications. However, traditional plasmonic materials exhibit substantial optical los…
Temporal Interface in Dispersive Hyperbolic Media
Grigorii Ptitcyn, Diego Martinez Solís, Mohammad Sajjad Mirmoosa +1
Spatial inhomogeneity, temporal modulation, and engineered anisotropy of parameters of electromagnetic media offer numerous opportunities for manipulating light-matter interaction…
Affine diffractive beam dividers
F. Gori, R. Martinez-Herrero, O. Korotkova +5
Diffractive optical elements that divide an input beam into a set of replicas are used in many optical applications ranging from image processing to communications. Their design re…
On z-coherence in self-focusing
F. Gori, R. Martínez-Herrero, G. Piquero +3
Both the intensity distribution and the degree of coherence between pairs of points along the propagation axis (z-coherence) are derived in closed form for a phenomenon of self-foc…
On z-coherence of beams radiated by Schell-model sources with Gaussian profile
M. Santarsiero, G. Piquero, J. C. González de Sande +3
The degree of coherence and the intensity distribution on the axis of the beam radiated by a planar partially coherent source of the Schell-model type are investigated. We present…
Three-dimensional polarization of fields radiated by partially coherent electromagnetic cylindrical sources
M. Santarsiero, J. C. G. De Sande, O. Korotkova +3
Partially coherent electromagnetic sources with cylindrical symmetry and infinite extent radiating outwards are introduced. Their cross-spectral density matrix is given…
Observation of helical pulses
Ren Wang, Shuai Shi, Zeyi Zhang +4
Ultrafast spatiotemporal vortex pulses constitute a category within spatiotemporal topological waves. Nevertheless, the experimental realization of helical pulses single or few cyc…
A negative index metamaterial driven by phonons on a ZnO platform
Julia Ingles-Cerrillo, Pablo Ibanez-Romero, Rajveer Fandan +7
Negative index metamaterials (NIMs) can be achieved with uniaxial hyperbolic metamaterials (HMMs) featuring and . This type of approach has be…
Effective Refractive-Index Approximation: A Link between Structural and Optical Disorder of Planar Resonant Optical Structures
Žarko Gačević, Nenad Vukmirović
We provide detailed insights into a link between structural and optical disorder of resonant optical structures, in particular, distributed Bragg reflectors (DBRs) and resonant mic…
Transverse orbital angular momentum of spatiotemporal optical vortices
Miguel A. Porras
Spatiotemporal optical vortices (STOVs) are electromagnetic wave packets that transport a phase line singularity perpendicular to their propagation direction. We address the proble…
Roadmap on spatiotemporal light fields
Yijie Shen, Qiwen Zhan, Logan G. Wright +42
Spatiotemporal sculpturing of light pulse with ultimately sophisticated structures represents the holy grail of the human everlasting pursue of ultrafast information transmission a…
Broadband X-waves with orbital angular momentum
Miguel A. Porras, Raúl García-Álvarez
We describe the minimal diffraction-free and dispersion-free, superluminal wave packets (X-waves and generic superluminal localized waves) that can carry a given amount of units $m…
Spatiotemporal optical vortex solitons: Dark solitons with transverse and tilted phase line singularities
Miguel A. Porras
Vortex solitons (dark solitons) are described in self-defocusing Kerr media whose phase line singularity is not parallel to the propagation direction, but is perpendicular or tilte…
Exploding paraxial beams, vortex beams, and cylindrical beams of light with finite power in linear media, and their enhanced longitudinal field
Miguel A. Porras
We present a set of paraxial light beams with cylindrical symmetry, smooth and localized transversal profile carrying finite power, that develop intensity singularities when they a…
Beams with propagation-invariant transverse polarization pattern
J. C. G. de Sande, Gemma Piquero, Juan Carlos Suárez-Bermejo +1
A wide class of nonuniformly totally polarized beams is introduced that preserve their transverse polarization pattern during paraxial propagation. They are obtained as suitable co…
Rotating azimuthons in dissipative Kerr media excited by superpositions of Bessel beams
Carlos Ruiz-Jiménez, Hervé Leblond, Miguel A. Porras +1
We report the existence of persistently rotating azimuthons in media with self-focusing Kerr and absorption nonlinearities. The nonlinear loss is balanced by power influx from the…
General laws of the propagation of ultrafast vortices in free space
Miguel A. Porras, Raúl García-Álvarez
We conduct a theoretical study of the propagation of few-cycle, ultrafast vortices (UFVs) carrying orbital angular momentum (OAM) in free space. Our analysis reveals much more comp…
Manipulation, trapping, splitting and merging of water and aqueous bio-droplets by photovoltaic optoelectronic tweezers
Andrés Puerto, Angel Méndez, Luis Arizmendi +2
Optical and optoelectronic techniques for micro- and nano-object manipulation are becoming essential tools in nano- and bio-technology. A remarkable optoelectronic technique that h…
Couplings between the temporal and orbital angular momentum degrees of freedom in ultrafast vortices with propagation-invariant temporal shape
Miguel A. Porras, Claudio Conti
In any form of wave propagation, strong spatiotemporal coupling appears when non-elementary, three-dimensional wave-packets are composed by superimposing pure plane waves, or spont…
Attosecond helical pulses
Miguel A. Porras
We find a solution of the wave equation in the paraxial approximation that describes the attosecond pulses with spatiotemporal helical structure in the phase and in the intensity r…
When topological derivatives met regularized Gauss-Newton iterations in holographic 3D imaging
A. Carpio, T. G. Dimiduk, F. Le Louer +1
We propose an automatic algorithm for 3D inverse electromagnetic scattering based on the combination of topological derivatives and regularized Gauss-Newton iterations. The algorit…