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@. S. Moehl, F. Tinjod, K. Kheng, and H. Mariette, «Reduction of exciton-phonon interaction due to better confinement in single quantum dots», en cours de rédaction pour Phys, Rev. B

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@. F. Tinjod, S. Moehl, K. Kheng, and H. Mariette, «Influence of Mg on the temperaturedependent optical properties of CdTe quantum dots embedded in ZnMgTe», Phys. Stat. Sol. (c)

@. Robin, R. André-le-si-dang, H. Mariette, F. Tinjod, K. Kheng et al., Schikora «How to avoid non-radiative escape of excitons from quantum dots?, Phys. Stat. Sol. (c)

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@. Zinc, C'est un métal de transition du groupe IIB connu depuis l'antiquité. Il est relativement abondant (120g/tonne d'écorce terrestre), blanc-bleuâtre, de symétrie hexagonale, peu malléable, pour ne pas dire cassant à température ordinaire. Il devient malléable à température élevée. On le trouve dans la nature à l'état de sulfure : la blende ZnS appelée aussi sphalérite (qui a donné son nom à la structure cubique par opposition à la structure hexagonale)? Le zinc est très largement utilisé, que ce soit pour faire du laiton (alliage zinc-cuivre) mais aussi dans certains bronzes

. Avant-de-recharger-le-creuset-en-zinc, la charge Zn doit être dégraissée (bains successifs avec ultra-sons : trichlo. chaud, trichlo. froid, acétone, méthanol ) et attaquée (bain dans un mélange bouillant acide nitrique/méthanol jusqu'à ce que la charge prenne un bel aspect brillant

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*. , +. Haute-tension, and =. Danger, en plus de celui d'un faisceau laser de quelques Watts. ? Laser 'Titane-Saphir' en mode impulsionnel doublé

. Au-contraire-du-laser-argon, le 'titane-saphir' est un laser à milieu amplificateur solide : un cristal de saphir (d'alumine donc, Al 2 O 3 ?tout comme le rubis d'ailleurs?), dopé par des ions de titane : Ti 3+ , d'où son abréviation correcte de saphir

. En, le laser délivre une impulsion toutes les 13 ns ; ce taux de répétition de 76 MHz correspond à un aller-retour dans la cavité laser longue d'environ deux mètres (3.10 8 /2² = 75.10 6 ) Un cristal doubleur KDP** permet ensuite de récupérer des photons d'énergie suffisante pour exciter nos matériaux dans leurs barrières : à environ 3, eV donc (N.B. pour les nitrures, il faut même tripler l'énergie du saphir:Ti)

*. *-phosphate-dihydrogéné-de-potassium, cristal non centro-symétrique (-42m) au sein duquel deux photons d'énergie E se couplent pour n'en donner plus qu'un d'énergie 2E ! N.B. Cet effet non linéaire de l'optique ondulatoire qu'est la génération de seconde harmonique