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Listar por autor "Barreda Gómez, Ángela Inmaculada"

Mostrando ítems 1-10 de 10

Continuous-wave frequency upconversion with a molecular optomechanical nanocavity

Chen, Wen; Roelli, Philippe; Hu, Huatian; Verlekar, Sachin; Amirtharaj, Sakthi Priya; Barreda, Ángela I.; Kippenberg, Tobias J.; Kovylina, Miroslavna; Verhagen, Ewold; Martínez Abietar, Alejandro José; Galland, Christophe (American Association for the Advancement of Science (AAAS), 2021-12-03)

[EN] Coherent upconversion of terahertz and mid-infrared signals into visible light opens new horizons for spectroscopy, imaging, and sensing but represents a challenge for conventional nonlinear optics. Here, we used a ...
DISEÑO DE ANTENAS DUALES DE THZ Y VISIBLE CON CONFINAMIENTO EXTREMO DE CAMPO ELÉCTRICO

Espí Albiñana, Vicente (Universitat Politècnica de València, 2020-12-22)

[ES] Este proyecto lo que pretende conseguir es la creación y fabricación de una nanoantena para poder detectar y analizar señales en THz. Las ondas de Terahercios (THz) se ubican entre microondas e infrarrojos en el ...
Dispersive optomechanics of supercavity modes in high-index disks

Mercadé-Morales, Laura; Barreda, Ángela; Martínez Abietar, Alejandro José (The Optical Society, 2020-09-15)

[EN] In this work, we study the dispersive coupling between optical quasi-bound states in the continuum at telecom wavelengths and GHz-mechanical modes in high-index wavelength-sized disks. We show that such cavities can ...
Exotic nanophotonics with subwavelength high-index disks

Díaz-Escobar, Evelyn; Pinilla-Cienfuegos, Elena; Barreda, Ángela I.; Mercadé-Morales, Laura; Griol Barres, Amadeu; Martínez, Alejandro (Íñigo Cuiñas Gómez, 2021-09-24)

[EN] High-index dielectric disks with subwavelength dimensions seem relatively simple electromagnetic structures. However, they can give rise to exotic phenomena in nanophotonics. Here we show recent findings that show ...
Experimental observation of higher-order anapoles in individual silicon disks under in-plane illumination

Díaz-Escobar, Evelyn; Barreda-Gómez, Ángela Inmaculada; Griol Barres, Amadeu; Martínez, Alejandro (American Institute of Physics, 2022-11-14)

[EN] Anapole states¿characterized by a strong suppression of far-field scattering¿naturally arise in high-index nanoparticles as a result of the interference between certain multipolar moments. Recently, the first-order ...
Hybrid photonic-plasmonic cavities based on the nanoparticle-on-a-mirror configuration

Barreda, Ángela I.; Zapata-Herrera, Mario; Palstra, Isabelle M.; Mercadé-Morales, Laura; Aizpurua, Javier; Koenderink, A. Femius; Martínez Abietar, Alejandro José (Optical Society of America, 2021-12-01)

[EN] Hybrid photonic-plasmonic cavities have emerged as a new platform to increase light-matter interaction capable to enhance the Purcell factor in a singular way not attainable with either photonic or plasmonic cavities ...
Hybrid Photonic-Plasmonic Cavity Design for Very Large Purcell Factors at Telecommunication Wavelengths

Barreda-Gómez, Ángela Inmaculada; Mercadé, Laura; Zapata-Herrera, Mario; Aizpurua, Javier; Martínez, Alejandro (American Physical Society, 2022-10-17)

[EN] Hybrid photonic-plasmonic cavities can be tailored to display high Q factors and extremely small mode volumes simultaneously, which ultimately results in large values of the Purcell factor. Amongst the different ...
Light Guidance Aided by the Toroidal Dipole and the Magnetic Quadrupole in Silicon Slotted-Disk Chains

Díaz-Escobar, Evelyn; Barreda, Ángela I.; Mercadé, Laura; Griol Barres, Amadeu; Pitanti, Alessandro; Martínez, Alejandro (American Chemical Society, 2023-03-15)

[EN] Far-field scattering of high-index nanoparticles can be hugely reduced via interference of multipolar moments giving rise to the so-called anapole states. It has been suggested that this reduced scattering can contribute ...
Photonic Bandgap Closure and Metamaterial Behavior in 1D Periodic Chains of High-Index Nanobricks

Díaz-Escobar, Evelyn; Mercadé-Morales, Laura; Barreda, Ángela I.; García-Rupérez, Jaime; Martínez, Alejandro (MDPI AG, 2022-10)

[EN] It has been shown that the photonic bandgap of one-dimensional (1D) dielectric periodic thin films can vanish at the first Bragg condition for TM modes. Here, we address the case of 1D photonic crystal slabs formed ...
Radiationless anapole states in on-chip photonics

Díaz-Escobar, Evelyn; Bauer, Thomas; Pinilla-Cienfuegos, Elena; Barreda, Ángela I.; Griol Barres, Amadeu; Kuipers, K.; Martínez Abietar, Alejandro José (Nature Publishing Group, 2021-10-04)

[EN] High-index nanoparticles are known to support radiationless states called anapoles, where dipolar and toroidal moments interfere to inhibit scattering to the far field. In order to exploit the striking properties ...