Refractive Index Changes of Pd-Coated Magnesium Ianthanide Switchable Mirrors Upon Hydrogen Insertion
Date Published |
01/1999
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Publication Type | Journal Article
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Authors | |
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DOI |
10.1063/1.369399
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LBL Report Number |
LBNL-41976
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Abstract |
The optical effect upon insertion of hydrogen into Pd-coated magnesium lanthanide switchable mirrors is investigated in terms of the changes of their complex refractive indices. A significant change in the optical constants of LnMg layers is seen between the as-deposited state and the dehydrided state after one cycle. Furthermore, the optical effect of switching the Pd cap layer to a PdH cap layer was determined. It is shown that the Pd layer mainly limits the visible transmittance of the hydrided stack to about 35%-40%. Whereas the extinction coefficient of dehydrided LnMg layers at 550 nm is between 2.2 and 3.1, it is as low 10-4 as in the transparent state. This is of great promise to applications requiring large optical contrast (e.g., optical switches). |
Journal |
Journal of Applied Physics
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Volume |
85
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Year of Publication |
1999
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Issue |
1
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Number |
1
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Pagination |
408-413
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ISSN Number |
0021-8979
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Custom 1 |
<p>Windows and Daylighting Group</p>
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Organizations | |
Research Areas | |
File(s) | |
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