Listar Artículos de revista ISC - ISC aldizkari artikuluak por autor UPNA "Pacheco-Peña, Víctor"
Mostrando ítems 1-16 de 16
-
Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
Pacheco-Peña, Víctor
; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (Wiley, 2016)
Artículo / Artikulua 
In this paper we study the excitation of photonic nanojets (PNJ) in 3D dielectric cuboids by surface plasmons at telecommunication wavelengths. The analysis is done using the effective refractive index approach. It is shown ... -
Controlling the direction of propagation of surface plasmons via graded index effective dielectric media
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this work, we propose a mechanism to steer and tailor surface plasmon propagation by using graded index concepts. In this approach, a block of dielectric with fixed thickness is placed on top of a semi-infinite metal. ... -
Description of bow-tie nanoantennas excited by localized emitters using conformal transformation
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel ; Fernández Domínguez, Antonio I.; Luo, Yu; Navarro Cía, Miguel (American Chemical Society, 2016)
Artículo / Artikulua
The unprecedented advance experienced by nano- fabrication techniques and plasmonics research over the past few years has made possible the realization of nanophotonic systems entering into the so-called strong coupling ... -
Experimental demonstration of deeply subwavelength dielectric sensing with epsilon-near-zero (ENZ) waveguides
Beruete Díaz, Miguel ; Engheta, Nader; Pacheco-Peña, Víctor (American Institute of Physics, 2022)
Artículo / Artikulua
In this Letter, an all metallic sensor based on ε-near-zero (ENZ) metamaterials is studied both numerically and experimentally when working at microwave frequencies. To emulate an ENZ medium, a sensor is made by using a ... -
Experimental realization of an epsilon-near-zero graded-index metalens at terahertz frequencies
Pacheco-Peña, Víctor ; Engheta, Nader; Kuznetsov, Sergei A.; Gentselev, Alexandr; Beruete Díaz, Miguel (American Physical Society, 2017)
Artículo / Artikulua
The terahertz band has been historically hindered by the lack of efficient generators and detectors, but a series of recent breakthroughs have helped to effectively close the “terahertz gap.” A rapid development of terahertz ... -
Extraordinary THz transmission with a small beam spot: the leaky wave mechanism
Navarro Cía, Miguel ; Pacheco-Peña, Víctor ; Kuznetsov, Sergei A.; Beruete Díaz, Miguel (Wiley, 2018)
Artículo / Artikulua
The discovery of extraordinary optical transmission (EOT) through patterned metallic foils in the late 1990s was decisive for the development of plasmonics and cleared the path to employ small apertures for a variety of ... -
Increasing surface plasmons propagation via photonic nanojets with periodically spaced 3D dielectric cuboids
Pacheco-Peña, Víctor ; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (MDPI, 2016)
Artículo / Artikulua
A structure based on periodically arranged 3D dielectric cuboids connected by photonic nanojets (PNJs) is proposed with the aim of increasing the propagation distance of surface plasmon polaritons (SPPs) at the telecom ... -
On the performance of an ENZ-based sensor using transmission line theory and effective medium approach
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel ; Rodríguez Ulibarri, Pablo ; Engheta, Nader (IOP Publishing, 2019)
Artículo / Artikulua
In this paper we perform an in-depth theoretical studyofa sensing platform based on epsilon-near- zero (ENZ) metamaterials. The structure proposed for sensing is a narrow metallic waveguide channel. An equivalent circuit ... -
On the performance of the zoned fishnet metamaterial lens with positive and negative reference phase
Pacheco-Peña, Víctor ; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (IEEE, 2016)
Artículo / Artikulua
In this letter, several converging fishnet metalenses are designed using both the zoning and reference phase techniques. They are engineered with a focal length of 1.5λ0 at the design frequency of 55 GHz (λ0 = 5.45 mm) at ... -
Overcoming the diffraction limit with high-index dielectric particles
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this communication, we propose and demonstrate the ability to produce photonic nanojets using high refractive index dielectric particles immersed in air. An extremely narrow focus is produced just at the output surface ... -
Phase reversal technique applied to fishnet metalenses
Pacheco-Peña, Víctor ; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (Hindawi, 2018)
Artículo / Artikulua
In this work, the fishnet metamaterial is applied to several converging metalenses by combining the zoning, reference phase, and phase reversal techniques. First, the zoning and reference phase techniques are implemented ... -
Photonic nanojets with mesoscale high-index dielectric particles
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (AIP Publishing, 2019)
Artículo / Artikulua
In this work, we demonstrate the ability of high-index dielectric particles immersed in air to generate photonic nanojets with extreme resolution (∼0.06λ0). Both 2D (cylindrical) and 3D (spherical) particles are analyzed, ... -
Quantum antireflection temporal coatings: quantum state frequency shifting and inhibited thermal noise amplification
Liberal Olleta, Íñigo ; Vázquez Lozano, Juan Enrique; Pacheco-Peña, Víctor (wiley, 2023)
Artículo / Artikulua
The quantum optical response of antireflection temporal coatings (ATCs), that is, matching temporal layers that suppress the generation of backward waves in temporal boundaries, is investigated. The results reveal that ... -
Steering surface plasmons with a graded index dielectric medium
Beruete Díaz, Miguel ; Pacheco-Peña, Víctor (IOP Publishing, 2018)
Artículo / Artikulua
The arbitrary control of surface plasmon (SP) propagation has become an intense research topic for several decades. This is due to the fact that they can be used in a variety of fields such as optical trapping, nanoantennas ... -
Super-oscillatory metalens at terahertz for enhanced focusing with reduced side lobes
Legaria Lerga, Santiago; Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (MDPI, 2018)
Artículo / Artikulua
In this paper, we design and numerically demonstrate an ultra-thin super-oscillatory metalens with a resolution below the diffraction limit. The zones of the lens are implemented using metasurface concepts with hexagonal ... -
Tripod-loop metasurfaces for terahertz-sensing applications: a comparison
Jáuregui López, Irati ; Orazbayev, Bakhtiyar ; Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (MDPI, 2020)
Artículo / Artikulua
The high electric field intensity achieved on the surface of sensors based on metasurfaces (metasensors) makes them an excellent alternative for sensing applications where the volume of the sample to be identified is tiny ...
