Concept

Parametric oscillator

Related publications (45)

Polariton-polariton interactions and stimulated scattering in semiconductor microcavities

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

An Analysis of Flicker Noise Rejection in Low-Power and Low-Voltage CMOS Mixers

Christian Enz

The sensitivity of RF CMOS receivers using a direct conversion or a low-IF architecture is strongly affected by flicker noise. This paper gives theoretical guidelines to predict the flicker noise in Gilbert-cell mixers. The conversion gain, the equivalent ...

2001

Auto-zero differential difference amplifier

Maher Kayal

The differential difference amplifier (DDA) is considered as a versatile building block for the analogue processing of floating voltages. An automatic offset compensation scheme is proposed for the DDA structure. A digital successive approximation algorith ...

2000

Synthèse multimodèle d'un régulateur polynomial robuste

Yves Henri Philippe Piguet

Two new approaches are proposed for the multimodel synthesis of a two-degrees-of-freedom polynomial controller : the multimodel pole placement and the multiobjective optimisation. Using several models enables taking into account the parametric variations o ...

EPFL1997

Quantum-Well Excitons In Semiconductor Microcavities - Unified Treatment Of Weak And Strong-Coupling Regimes

Vincenzo Savona, Paolo Schwendimann

The system of one or several quantum wells embedded in a planar semiconductor Fabry-Perot microcavity with distributed Bragg reflectors is studied in the framework of both a semiclassical and a full quantum theory. The results obtained with the two treatme ...

1995

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