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Purcell effect on CdSe/ZnSe quantum dots in pillar microcavities

Autor: Andrea Balocchi, I. C. Robin, Régis André, S. Carayon, S. Moehl, Jean-Michel Gérard

Publikováno v: physica status solidi (b)
physica status solidi (b), 2006, 243 (4), pp.827-830. ⟨10.1002/pssb.200564606⟩
physica status solidi (b), Wiley, 2006, 243 (4), pp.827-830. ⟨10.1002/pssb.200564606⟩

The Purcell effect leads to an enhancement of the spontaneous emission in a given cavity mode for an emitter located in a small volume cavity. This effect is well explained as a consequence of Fermi's golden rule in a particular photonic environment.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e9590d904fb9eaa90ee1788c27afc46
https://doi.org/10.1002/pssb.200564606

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Strong heavy-hole–light-hole mixing in CdZnSe quantum dots

Autor: Lucien Besombes, I. C. Robin, S. Moehl, Régis André, Kuntheak Kheng, Yoan Léger

Publikováno v: physica status solidi (b)
physica status solidi (b), Wiley, 2006, 243 (4), pp.849-852. ⟨10.1002/pssb.200564717⟩
physica status solidi (b), 2006, 243 (4), pp.849-852. ⟨10.1002/pssb.200564717⟩

The optical studies of negative trions in CdSe quantum dots under magnetic field in Voigt geometry reveal large hole g-factors, reaching values as high as the value of electron g-factors. This observation is attributed to strong mixing of heavy hole

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a6f29c1bef5e0910b2d1b26faae3bdd
https://hal.archives-ouvertes.fr/hal-02547812

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Engineering The Wetting Layer States To Reach Room Temperature Emission For CdTe Quantum Dot Structures

Autor: S. Moehl, Kuntheak Kheng, L. Maingault, H. Mariette

Publikováno v: AIP Conference Proceedings.

The confinement of excitons in CdTe/ZnMgTe quantum dots is shown to be significantly enhanced by the insertion of thin MgTe barrier layers next to the CdTe quantum dot layer. This has the effect to rise up the wetting layer states. As a consequence,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7df7c36e5cc15523f5163b5e9ba53c0f
https://doi.org/10.1063/1.1994257

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Autor: R. Romestain, Kuntheak Kheng, F. Tinjod, Henri Mariette, Jean-Michel Gérard, J. A. Gaj, S. Moehl, Christophe Couteau, Jean-Philippe Poizat

Publikováno v: Applied Physics Letters
Applied Physics Letters, 2004, 85 (25), pp.6251-6253. ⟨10.1063/1.1842370⟩

We report correlation and cross-correlation measurements of photons emitted under continuous wave excitation by a single II-VI quantum dot (QD) grown by molecular-beam epitaxy. A standard technique of microphotoluminescence combined with an ultrafast

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9c7e1866132ac7519d5241e3801eab1
https://hal.science/hal-04066632

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Reduction of exciton-phonon interaction due to stronger confinement in single quantum dots

Autor: Kuntheak Kheng, S. Moehl, Henri Mariette, F. Tinjod

Publikováno v: Physical Review B
Physical Review B, 2004, 69 (24), pp.245318. ⟨10.1103/PhysRevB.69.245318⟩

We study optical emission from single CdTe quantum dots embedded in ${\mathrm{Zn}}_{1\ensuremath{-}x}{\mathrm{Mg}}_{x}\mathrm{Te}$ barriers. A progressive and simultaneous reduction of (i) exciton-acoustic phonon coupling and (ii) anti-Stokes scatter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f10a5ff05f47b55222fba0b756994476
https://hal.science/hal-04066675

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Influence of Mg on the temperature‐dependent optical properties of CdTe quantum dots embedded in Zn 0.7 Mg 0.3 Te

Autor: F. Tinjod, S. Moehl, Henri Mariette, Kuntheak Kheng

Publikováno v: physica status solidi (c)
physica status solidi (c), 2004, 1 (4), pp.787-790. ⟨10.1002/pssc.200304239⟩

We compare the temperature-dependent optical properties of CdTe quantum dots with and without Mg in their Zn(Mg)Te barriers. The difficulty of forming CdTe dots on Zn0.7Mg0.3Te barriers (due to the decrease of the lattice mismatch) has been overcome

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85a7b4d6b709422d3a1d2fd127de3663
https://hal.science/hal-04067071

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Surfactant effect of gallium during molecular-beam epitaxy of GaN on AlN (0001)

Autor: Guido Mula, S. Moehl, Bruno Daudin, Christoph Adelmann, J. Oullier

Publikováno v: Physical Review B. 64

We study the adsorption of Ga on ~0001! GaN surfaces by reflection high-energy electron diffraction. It is shown that a dynamically stable Ga bilayer can be formed on the GaN surface for appropriate Ga fluxes and substrate temperatures. The influence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03595c194058032abc2e99dbc65e80ab
https://doi.org/10.1103/physrevb.64.195406

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Boîtes quantiques II-VI comme sources de photons uniques

Autor: Jean-Michel Gérard, C. Couteau, R. Romestain, Kuntheak Kheng, Jean-Philippe Poizat, F. Tinjod, Jan Suffczyński, J.-C. Vial, S. Moehl

Publikováno v: Journal de Physique IV (Proceedings). 119:165-166

Dans le cadre de l'information et de la communication quantique, la necessite d'avoir des photons uniques monomodes et a la demande se revele cruciale. De recents travaux theoriques ont montre la possibilite de realiser des portes logiques quantiques

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04037ab4af920f55f3382355d0447089
https://doi.org/10.1051/jp4:2004119039

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