Publication

Quantum kinetics of parametric polariton scattering in microcavities

Benoît Marie Joseph Deveaud, Jean-Louis Staehli, Cristiano Ciuti, Michele Saba, Stefan Kundermann
2002
Journal Articles

Abstract

An investigation of the parametric amplification and its coherent control in a semiconductor micro-cavity is presented. The time and angle resolved pump and probe experiments show that several ps after pumping parametric scattering is still phase coherent. The experimental data are in qualitative agreement with the numerical data obtained from a relatively simple theoretical model based on three polarisation components, pump, probe, and idler. This model also predicts that under particular circumstances, the polaritons can scatter back from the signal and idler to the pump.

Official source

https://infoscience.epfl.ch/entities/publication/ca03d809-04e1-4c05-8ec6-f076f19e1c06

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Benoît Marie Joseph Deveaud, Jean-Louis Staehli, Cristiano Ciuti, Michele Saba, Stefan Kundermann
2002
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ca03d809-04e1-4c05-8ec6-f076f19e1c06

About this result

Related concepts (32)

Optical amplifier

An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. They are used as optical repeaters in the long distance fiberoptic cables which carry much of the world's telecommunication links.

Spontaneous parametric down-conversion

Spontaneous parametric down-conversion (also known as SPDC, parametric fluorescence or parametric scattering) is a nonlinear instant optical process that converts one photon of higher energy (namely, a pump photon), into a pair of photons (namely, a signal photon, and an idler photon) of lower energy, in accordance with the law of conservation of energy and law of conservation of momentum. It is an important process in quantum optics, for the generation of entangled photon pairs, and of single photons.

Raman scattering

Raman scattering or the Raman effect (ˈrɑːmən) is the inelastic scattering of photons by matter, meaning that there is both an exchange of energy and a change in the light's direction. Typically this effect involves vibrational energy being gained by a molecule as incident photons from a visible laser are shifted to lower energy. This is called normal Stokes Raman scattering. The effect is exploited by chemists and physicists to gain information about materials for a variety of purposes by performing various forms of Raman spectroscopy.