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Polariton polarization-sensitive phenomena in planar semiconductor microcavities

Publications associées (50)

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Coherence properties of microcavity polaritons

Stefan Kundermann

This thesis presents the coherence properties of polaritons in semiconductor microcavities. Semiconductor microcavities are microstructures in which the exciton ground state of a semiconductor quantum well is coupled to a photonic mode of a microresonator. ...

EPFL2006

Calculation of the torque on dielectric elliptical cylinders

Hans Peter Herzig

We investigate the small-particle phonon-polariton response of several microstructures that are made of silicon carbide (SiC). Phonon polaritons can be excited in a wavelength region between 10 and 12 μm. Simple structures such as elliptical cylinders supp ...

2005

High-occupancy effects and stimulation phenomena in semiconductor microcavities

Raphaël Butté

This paper describes recent work on high-occupancy effects in semiconductor microcavities, with emphasis on the variety of new physics and the potential for applications that has been demonstrated recently. It is shown that the ability to manipulate both e ...

Institute of Electrical and Electronics Engineers2002

Polariton-polariton interactions and stimulated scattering in semiconductor microcavities

Raphaël Butté

Recent work on polariton-polariton scattering in semiconductor microcavities under continuous wave excitation conditions is reviewed. For weak non-resonant laser excitation, a marked bottleneck in the polariton distribution is observed, but which is suppre ...

2002

Polariton traps in semiconductor microcavities

Raphaël Butté

The strong coupling of excitons and photons inside a semiconductor microcavity forms a trap in k-space for the coupled polaritons. This trap produces new behaviour from the strong parametric scattering of polaritons on the walls of the trap, from condensat ...

2002

High-order balanced multiwavelets: theory, factorization, and design

Martin Vetterli, Jérôme Lebrun

This correspondence deals with multiwavelets, which are a recent generalization of wavelets in the context of time-varying filter banks and with their applications to signal processing and especially com- pression. By their inherent structure, multiwavelet ...

2001

Crossover from exciton to biexciton polaritons in semiconductor microcavities

Benoît Marie Joseph Deveaud, Ursula Oesterle, Cristiano Ciuti, Michele Saba

Pump-probe measurements in a microcavity containing a quantum well show that a population of circularly polarized (sigma(+)) excitons can completely inhibit the transition to sigma(-) one-exciton states by transferring the oscillator strength to the biexci ...

2000

Optical properties of microcavity polaritons

Vincenzo Savona, Paolo Schwendimann

This work contains a theoretical analysis of the optical properties of semiconductor quantum wells embedded in planar Fabry-Perot microcavities. In particular, the properties of the system in correspondence to the excitonic transition are studied by means ...

1999

Optical spectroscopy study of carriers recombination in quantum wires

We report the optical properties of high quality V-groove GaAs/Al0.3Ga0.7.As quantum wires (QWRs) with different thicknesses of the GaAs layer. The systematic investigation of photoluminescence (PL) and photoluminescence excitation (PLE) spectra as a funct ...

EPFL1998

Threshold behavior in the collision broadening of microcavity polaritons

Vincenzo Savona, Paolo Schwendimann, Cristiano Ciuti

The problem of the density-dependent homogeneous broadening of microcavity polaritons due to exciton-exciton Coulomb interaction is addressed using the self-consistent Born approximation. The theoretical results predict that, for resonant pumping of the lo ...

1998