Coherent light generators – Particular active media – Semiconductor
Patent
1988-07-12
1990-09-04
Hille, Rolf
Coherent light generators
Particular active media
Semiconductor
372 43, 372 44, 357 16, 357 17, H01S 319
Patent
active
049550314
ABSTRACT:
A metal insulator semiconductor heterostructure laser emitting in the blue spectrum is formed by a substrate of n-type zinc selenide, zinc sulfoselenide (ZnSSe) and zinc manganese selenide (ZnMnSe); a confining layer of n-type zinc sulfoselenide, or zinc manganese selenide (ZnMnSe); an active layer of n-type zinc selenide or zinc sulfoselenide (ZnSSe) or zinc manganese selenide (ZnMnSe); a thin insulator layer and a top layer of reflective barrier metal stripes and thick insulating material. An applied potential with the metal stripes being positive injects minority holes into the active layer which combine with a n-type electron to produce photons. The barrier metal stripes and thin insulator layer combine to provide an inverted active layer surface which is instrumental in injecting minority holes. The generated photons are confined in the active layer by the barrier metal on one side and the confining layer on the other.
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Hille Rolf
Tran Minh L.
University of Connecticut
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