Au/Nb2O5 terahertz-gigahertz electro-optical filters designed for high frequency applications
Sabah E Algarni,
A F Qasrawi,
Najla M Khusayfan
Abstract:Herein enhanced broad band filters are fabricated by deposing thin films of Nb2O5 onto glass and semitransparent Au nanosheets using the ion coating technique. Remarkable enhancement in the surface roughness of the films and in the visible and infrared light absorption by more than 270 % and 750%, respectively, is achieved by coating the films onto Au nanosheets. Au nanosheets redshifted the energy band gap and initiated the free carrier absorption in the Nb2O5 films. As terahertz band filters, Au/Nb2O5 inter… Show more
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