Publication

Strongly driven semiconductor microcavities: From the polariton doublet to an AC Stark triplet

Romuald Houdré, Benoît Marie Joseph Deveaud, Ursula Oesterle, Jean-Louis Staehli
1998
Journal Articles

Abstract

We report femtosecond pump and probe experiments in a semiconductor microcavity containing quantum wells. At high pump fields, the exciton-polariton Rabi doublet changes into a triplet structure. The triplet splitting increases as the square root of the input intensity. The transmitted probe intensity is modulated with the corresponding frequency Versus pump-probe delay. The experimental results are discussed in terms of Mollow spectra of a saturated transition of a two-level system.

Official source

https://infoscience.epfl.ch/entities/publication/699246bf-9d1c-4054-8d47-abf236bdd0ca

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Romuald Houdré, Benoît Marie Joseph Deveaud, Ursula Oesterle, Jean-Louis Staehli
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/699246bf-9d1c-4054-8d47-abf236bdd0ca

About this result

Related concepts (28)

Quantum well

A quantum well is a potential well with only discrete energy values. The classic model used to demonstrate a quantum well is to confine particles, which were initially free to move in three dimensions, to two dimensions, by forcing them to occupy a planar region. The effects of quantum confinement take place when the quantum well thickness becomes comparable to the de Broglie wavelength of the carriers (generally electrons and holes), leading to energy levels called "energy subbands", i.e.

Quantum dot

Quantum dots (QDs) – also called semiconductor nanocrystals, are semiconductor particles a few nanometres in size, having optical and electronic properties that differ from those of larger particles as a result of quantum mechanics. They are a central topic in nanotechnology and materials science. When the quantum dots are illuminated by UV light, an electron in the quantum dot can be excited to a state of higher energy. In the case of a semiconducting quantum dot, this process corresponds to the transition of an electron from the valence band to the conductance band.

Quantum computing

A quantum computer is a computer that exploits quantum mechanical phenomena. At small scales, physical matter exhibits properties of both particles and waves, and quantum computing leverages this behavior, specifically quantum superposition and entanglement, using specialized hardware that supports the preparation and manipulation of quantum states. Classical physics cannot explain the operation of these quantum devices, and a scalable quantum computer could perform some calculations exponentially faster than any modern "classical" computer.

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Strongly driven semiconductor microcavities: From the polariton doublet to an AC Stark triplet

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