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Highly absorbing nano-scale metal films for terahertz
Proc. SPIE 8119, 81190K (2011); http://dx.doi.org/10.1117/12.894088
Sunday 21 August 2011
San Diego, California, USA
Terahertz Emitters, Receivers, and Applications II
Manijeh Razeghi, Nicolas Péré-Laperne, Henry O. Everitt, John M. Zavada, Tariq Manzur
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Add to FacebookOur work aims to identify nano-scale metal films with enhanced absorption between 1 to 10 THz for use in thermal imagers operating in this spectral band. Absorption measurements of chromium and nickel films with different thicknesses (8 - 30 nm) revealed absorption as high as 40% (Cr) and 27% (Ni) between 3 and 9 THz. Further analysis showed that it is possible to optimize absorption by controlling conductivity of metal films by patterning them to reduce fill factor. This design flexibility allows tailoring of the absorbing layer to reduce residual stress of membranes used in microbolmeter and bi-material thermal sensors.
© 2011 COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Online Sep 07, 2011
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Fabio Alves, Apostolos Karamitros, Dragoslav Grbovic, Brian Kearney and Gamani Karunasiri, "Highly absorbing nano-scale metal films for terahertz",
Proc. SPIE 8119, 81190K (2011); http://dx.doi.org/10.1117/12.894088
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