Konstantinos Lagoudakis

Cette personne n’est plus à l’EPFL

Publications associées (14)

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Observation of Half Quantum Vortices in an Exciton-Polariton Condensate

Benoît Marie Joseph Deveaud, Konstantinos Lagoudakis

Singly quantized vortices have already been observed in many systems, including the superfluid helium, Bose-Einstein condensates of dilute atomic gases, and condensates of exciton-polaritons in the solid state. Two-dimensional superfluids carrying spin are ...

American Association for the Advancement of Science2009

Coexisting nonequilibrium condensates with long-range spatial coherence in semiconductor microcavities

Benoît Marie Joseph Deveaud, Konstantinos Lagoudakis, Barbara Pietka

Real- and momentum-space spectrally resolved images of microcavity polariton emission in the regime of condensation are investigated under nonresonant excitation using a laser source with reduced intensity fluctuations on the time scale of the exciton life ...

2009

Superconducting nanowire photon-number-resolving detector at telecommunication wavelengths

Francis Lévy, Konstantinos Lagoudakis, Francesco Marsili, Alessandro Gaggero

Optical-to-electrical conversion, which is the basis of the operation of optical detectors, can be linear or nonlinear. When high sensitivities are needed, single-photon detectors are used, which operate in a strongly nonlinear mode, their response being i ...

Nature Publishing Group2008

Quantized Vortices in an Exciton-Polariton Condensate

Benoît Marie Joseph Deveaud, Konstantinos Lagoudakis

One of the most striking quantum effects in an interacting Bose gas at low temperature is superfluidity. First observed in liquid 4He, this phenomenon has been intensively studied in a variety of systems for its remarkable features such as the persistence ...

Nature Publishing Group2008

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