Satian Guaman, Daniela Fernanda(Universitat Politècnica de València, 2024-10-10)
[ES] El fosfuro de galio (GaP) es un semiconductor del grupo indirect-bandgap utilizado para aplicaciones ópticas en estado sólido debido a su elevado índice de refracción, altas propiedades no lineales y gran band-gap ...
Aguilar Pinto, Lucía(Universitat Politècnica de València, 2024-10-01)
[ES] Una cavidad fotónica es una estructura que confina y controla la luz, permitiendo obtener resonancias a frecuencias específicas. Entre las diferentes formas de crear una cavidad fotónica, se destacan las cavidades de ...
[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 ...
Sanmartín Senent, Ana(Universitat Politècnica de València, 2021-09-20)
[ES] Los avances en nanotecnología, junto con la creciente necesidad de biosensores ultrasensibles, han aumentado drásticamente el interés por la fabricación a nanoescala de resonadores fotónicos, nanomecánicos y, en última ...
Gómez Fresneda, Juan Carlos(Universitat Politècnica de València, 2021-10-11)
[ES] Este proyecto se basa en el empleo de una cavidad optomecánica como posible oscilador de microondas
(OMO). Las cavidades optomecánicas permiten el confinamiento de ondas de luz y vibraciones
mecánicas de un sistema ...
Castellá Montoro, Adrián(Universitat Politècnica de València, 2020-05-13)
[ES] Una cavidad optomecánica permite confinar ondas de luz y vibraciones mecánicas en una región sub-micrométrica. Debido al elevado confinamiento, ambos tipos de onda se acoplan e intercambian energía mutuamente, por lo ...
[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 ...
Fito-Estevan, Vicente; Ortiz-Fernández, Raúl; Morant, Maria; Mercadé, Laura; Llorente, Roberto; Martínez, Alejandro(Institute of Electrical and Electronics Engineers, 2024-10-01)
[EN] Optomechanical crystal cavities (OMCCs) allow the interaction between localized optical and mechanical modes through the radiation-pressure force. Driving such cavities with blue-detuned lasers relative to the optical ...
[EN] Dynamical radiation pressure effects in cavity optomechanical systems give rise to self-sustained oscillations or 'phonon lasing' behavior, producing stable oscillators up to GHz frequencies in nanoscale devices. Like ...
[EN] Locking of oscillators to ultra-stable external sources is of paramount importance for improving close-to-carrier phase noise in free running oscillators. In most of them, such as Micro-Electro-Mechanical-Systems or ...
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 ...
[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 ...
[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 ...
[EN] Cavity optomechanics has recently emerged as a new paradigm enabling the manipulation of mechanical motion via optical fields tightly confined in deformable cavities. When driving an optomechanical (OM) crystal cavity ...
[EN] Silicon on insulator photonics has offered a versatile platform for the recent development of integrated optomechanical circuits. However, there are some constraints such as the high cost of the wafers and limitation ...
Castelló Pedrero, Lucía(Universitat Politècnica de València, 2021-07-26)
[ES] Actualmente, el Instituto Universitario de Tecnología Nanofotónica (NTC) y la spin-off Lumensia Sensors participan en el proyecto europeo SaPher, donde se pretende desarrollar y comercializar una plataforma de sensado ...
[EN] Optomechanical interaction in optical dielectric cavities can be used to generate high-purity microwave tones, giving
rise to optomechanical microwave oscillators. Here, we introduce the main properties of these ...
Mercadé Morales, Laura(Universitat Politècnica de València, 2021-07-26)
[ES] La optomecánica de cavidades se ocupa de la interacción entre la luz y la materia a través del efecto de presión de radiación cuando las ondas ópticas y mecánicas implicadas están confinadas en una cavidad. En estos ...
[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 ...
[EN] Optomechanical (OM) cavities enable coupling of near-infrared light and GHz-frequency acoustic waves in wavelength-scale volumes. When driven in the phonon lasing regime, an OM cavity can perform simultaneously as a ...