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Listar por autor "Shi, Lei"

Mostrando ítems 1-5 de 5

A new dielectric metamaterial building block with a strong magnetic response in the sub-1.5-micrometer region: Silicon colloid nanocavities

Shi, Lei; Tuzer, Turan Umut; Fenollosa Esteve, Roberto; Meseguer Rico, Francisco Javier (Wiley, 2012-11-20)

A new dielectric metamaterial building block based on high refractive index silicon spherical nanocavities with Mie resonances appearing in the near infrared optical region is prepared and characterized. It is demonstrated ...
All-Silicon spherical-Mie-resonator photodiode with spectral response in the infrared region

Garín Escrivá, Moisés; Fenollosa Esteve, Roberto; Alcubilla, Ramón; Shi, Lei; Marsal, L. F.; Meseguer Rico, Francisco Javier (Nature Publishing Group, 2014-03)

[EN] Silicon is the material of choice for visible light photodetection and solar cell fabrication. However, due to the intrinsic band gap properties of silicon, most infrared photons are energetically useless. Here, we ...
Magnetic interaction in all silicon waveguide spherical coupler device

Shi, Lei; Meseguer Rico, Francisco Javier (Optical Society of America, 2012-09-04)

[EN] The magnetic field component of light in dielectric materials generally plays a negligible role at optical frequency values. However, it is a key component of metal based metamaterials. Here we report on the dominant ...
Monodisperse silicon nanocavities and photonic crystals with magnetic response in the optial region

Shi, Lei; Harris, Justin T.; Fenollosa Esteve, Roberto; Rodríguez, Marie-Isabelle; Lu, Xiaotang; Korgel, Brian; Meseguer Rico, Francisco Javier (Nature Publishing Group, 2013-05)

[EN] It is generally accepted that the magnetic component of light has a minor role in the light-matter interaction. The recent discovery of metamaterials has broken this traditional understanding, as both the electric and ...
Silicon nanoparticles as Raman scattering enhancers

Rodríguez, Marie-Isabelle; Shi, Lei; Lu, Xiaotang; Korgel, Brian; Alvarez -Puebla, Ramon; Meseguer Rico, Francisco Javier (Royal Society of Chemistry, 2014-06-07)

[EN] In this communication we demonstrate the large amplification values of the Raman signal of organic molecules attached to silicon nanoparticles (SiNPs). Light induced Mie resonances of high refractive index particles ...

Mostrando ítems 1-5 de 5

Listar por autor "Shi, Lei"

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Listar por autor "Shi, Lei"