Hola,
¿eres nuevo aquí?

Regístrate gratis y conecta tu empresa con financiación pública, partners y proyectos.

Tengo cuenta

Regístrate

Ver video

SUPERRAD

Financiado

Cerrado

Demonstration of superradiance in a semiconductor nanostructure

Superradiance (SR) refers to spontaneous quantum phase transition, in which a self-organized build up of coherent radiation within an ensemble of quasi-degenerate emitters occurs. It was first noted by Dicke back in 1954 that, wi... ver más

28/02/2014

CNRS

45K€

Presupuesto del proyecto: 45K€

Líder del proyecto

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2014-02-28 No tenemos la información de la convocatoria

0% 100% 100%

Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

CNRS

0.00€ | Lider

Conecta tu I+D

¿Tienes un proyecto y buscas un partner? Gracias a nuestro motor inteligente podemos recomendarte los mejores socios y ponerte en contacto con ellos. Te lo explicamos en este video

Proyectos interesantes

FIS2009-08203 NANO-OPTICAL ANTENNAS FOR TUNABLE SINGLE PHOTON SUPER-EMITTE... 351K€ Cerrado

FASTQUANTUM Ultrafast Sepctroscopy of Quantum Structures 165K€ Cerrado

HYNANO Hybrid Nanophotonics for Enhanced Light Control 100K€ Cerrado

BES-2010-037460 NANO-OPTICAL ANTENNAS FOR TUNABLE SINGLE PHOTON SUPER-EMITTE... 29K€ Cerrado

FIS2010-22082 MEMORIAS CUANTICAS DE BANDA ANCHA EN NANOMATERIALES FOTONICO... 61K€ Cerrado

BES-2015-073375 Nanofotónica y Óptica cuántica 93K€ Cerrado

Líder del proyecto

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 45K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Superradiance (SR) refers to spontaneous quantum phase transition, in which a self-organized build up of coherent radiation within an ensemble of quasi-degenerate emitters occurs. It was first noted by Dicke back in 1954 that, with increasing their density, the collection of N radiators starts to emit much faster and stronger comparing to spontaneous emission of individuals. More precisely, when packing up N identical emitters into the space comparable with a cube of the radiation wavelength, instead of observing isotropic and exponentially decaying emission, one produces a fierce, directional radiation burst, having a lagged peak intensity scaling like N2 and N-times reduced duration with respect to the spontaneous emission. Apart from the fundamental aspect, the research for SR is motivated by the prospects in producing ultra-short, intense, coherent light pulses - in alternative to lasers. The prerequisite for creating a SR emission is a spectral uniformity of participating transitions. For that reason SR was first successfully observed in atomic and molecular ensembles. As concerns semiconductor nanostructures, nowadays widely used in optoelectronics, the evidence for SR has never been provided, as the SR effect is obscured by the spectral inhomogeneous broadening in a semiconductor matrix. The goal of this project is to achieve the first proof for SR within an ensemble of individual emitters embedded in a nanostructured semiconductor. To this aim, we will focus our efforts on donor-bound-excitons (D0X), which are excitons (Coulomb correlated electron-hole pairs) localized on donor impurities in a semiconductor, for instance Si replacing Ga atoms in a GaAs lattice. D0Xs are characterized by small, sub-meV, inhomogeneous broadening, large oscillator strength and a few hundreds ps lifetime - all acting in favor for inducing SR. Our approach will employ methods of both linear (PL, streak camera) and nonlinear (up-conversion) time-resolved optical spectroscopy.

Conecta tu I+D

Entra hoy

¿Olvidé mi contraseña?

Financiación

Empresas

CTIs/Universidades

Proyectos

Investigadores