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Machine translation
1. (WO1991003758) QUANTUM WELL STRUCTURES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1991/003758    International Application No.:    PCT/GB1990/001365
Publication Date: 21.03.1991 International Filing Date: 04.09.1990
Chapter 2 Demand Filed:    04.04.1991    
IPC:
G02F 1/015 (2006.01), G02F 1/017 (2006.01), G02F 1/355 (2006.01)
Applicants: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY [GB/GB]; 81 Newgate Street, London EC1A 7AJ (GB) (For All Designated States Except US).
BURT, Michael, Graham [GB/GB]; (GB) (For US Only)
Inventors: BURT, Michael, Graham; (GB)
Agent: ROBERTS, Simon, Christopher; British Telecommunications public limited company, Intellectual Property Unit, 151 Gower Street, London WC1E 6BA (GB)
Priority Data:
8919933.5 04.09.1989 GB
8919989.7 05.09.1989 GB
Title (EN) QUANTUM WELL STRUCTURES
(FR) STRUCTURES DE VALLEES QUANTIQUES
Abstract: front page image
(EN)By forming quantum well (QW) structures with two different heterojunctions having different band offsets it is possible to form QWs having built-in dipoles. The presence of a built-in dipole in a narrow enough well results in QWs having absorption edges which, unlike those of conventional QWs, can be shifted to the blue by application of an electric field of appropriate polarity.
(FR)La formation de structures de vallées quantiques (QW) à deux hétérojonctions différentes dont les décalages de bande interdite sont différents, permet de former des QW à dipôles incorporés. La présence d'un dipôle incorporé dans une vallée suffisamment étroite mène à des QW ayant des limites d'absorption qui, à la différence des QW traditionnels, peuvent être décalées vers le bleu par l'application d'un champ électrique à polarité appropriée.
Designated States: AU, CA, FI, JP, KR, NO, SU, US.
Publication Language: English (EN)
Filing Language: English (EN)