Optical devices having ZNS/CA-MG-fluoride multi-layered mirrors

In a multi-layered dielectric mirror the higher refractive index layers comprise ZnS and the lower refractive index layers comprise a composite of approximately 95%MgF2 and 5%CaF2 by mole fraction. In one embodiment, the fluoride layers are e-beam deposited from an essentially eutectic melt of the t...

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Bibliographic Details
Main Authors HUI SANGHEE PARK, CHIROVSKY LEO MARIA, ZYDZIK GEORGE JOHN
Format Patent
LanguageEnglish
Published 27.03.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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Summary:In a multi-layered dielectric mirror the higher refractive index layers comprise ZnS and the lower refractive index layers comprise a composite of approximately 95%MgF2 and 5%CaF2 by mole fraction. In one embodiment, the fluoride layers are e-beam deposited from an essentially eutectic melt of the two fluorides. In another embodiment, the semiconductor surface on which the mirror is formed is protected by an aluminum borosilicate glass layer. Application of the invention to the design and fabrication of VCSELs is also described.
Bibliography:Application Number: US19970997711