Organic–inorganic dielectric multilayer systems as high reflectivity distributed Bragg reflectors
作者:
A. Convertino,
A. Valentini,
T. Ligonzo,
R. Cingolani,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 6
页码: 732-734
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.119628
出版商: AIP
数据来源: AIP
摘要:
Unprecedentedly high reflectivity distributed Bragg reflectors consisting of fluorocarbon polymer(CFx)and high refractive index inorganic oxide multilayers have been fabricated by means of assisted ion-beam sputtering at room temperature. Multilayer stacks consisting of aCFx/TiOxandCFx/HfOxpairs exhibit reflectivities larger than 98&percent; in the infrared and ultraviolet spectral region, respectively. The superior wide tunability and the high efficiency, with respect to inorganic–inorganic multilayers is due to the exceptionally low refractive index of the fluorcarbon polymer(n≃1.35)on a very large spectral region (300–2000 nm). ©1997 American Institute of Physics.
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