Coherent light generators – Particular active media – Semiconductor
Patent
1992-04-30
1994-02-01
Epps, Georgia Y.
Coherent light generators
Particular active media
Semiconductor
372 43, 372 49, 372 99, 437129, H01S 319
Patent
active
052837980
ABSTRACT:
A semiconductor member of a laser screen cathode-ray tube is made of a semiconductor compound selected from the group consisting of binary, three-component and four-component compounds of elements of the second and sixth Groups of the Periodic System and a support member is made of a semiconductor compound of the same type with a bandgap width such as to make it transparent for radiation generated by said screen. Maximum of 15% of atoms of the overgrown support member are substituted for isovalent atoms and the bandgap width of the support member is at least 0.1 eV greater than the bandgap width of the semiconductor member. The support member is overgrown from vapor phase on a partly transparent mirror deposited to one side of the semiconductor member forming an optical cavity with a reflecting mirror deposited to the opposite side of the semiconductor member.
REFERENCES:
patent: 4749255 (1988-06-01), Chakraburti et al.
patent: 4955031 (1990-09-01), Jain
patent: 5045897 (1991-09-01), Ahlgren
patent: 5198690 (1993-03-01), Kitagawa et al.
Kolchin Andrey A.
Kozlovsky Vladimir I.
Epps Georgia Y.
Lerner Marshall A.
P.N. Lebedev Institute of Physics
Principia Optics, Inc.
Sicotte John F.
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