Coherent light generators – Particular active media – Insulating crystal
Patent
1998-09-17
2000-05-23
Healy, Brian
Coherent light generators
Particular active media
Insulating crystal
372 12, 372 13, 372 40, 372 43, H01S 316
Patent
active
060673087
ABSTRACT:
An electroluminescent solid state device includes an active body member that is formed of a single crystalline metal oxide, such as aluminum oxide, that is doped with a rare earth element, such as erbium and/or terbium and an activator atom such as oxygen and/or fluorine. The metal oxide body member is electron excited by kinetic electrons that are emitted by a cold cathode. The ends of the metal oxide body member are polished to form a Fabry-Perot resonator, thus providing for coherent radiation from the device. As an alternative to the use of a Fabry-Perot cavity, an acoustic wave generator is associated with the metal oxide body member in order to launch acoustic waves into the body member. The frequency of energization of the acoustic wave generator operates to select a radiation wavelength from one or more emission wavelengths that are produced by doping the metal oxide body member with one or more rare earth elements.
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Article "A New Electroluminescent Display Device" by Jacques I. Pankove, Journal of Luminescence, pp. 97-99.
Leksono Moeljanto W.
Pankove Jacques Isaac
Qiu Chang-Hua
Astralux, Inc.
Hancock Earl C.
Healy Brian
Sirr Francis A.
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