Special Section on Metamaterials and Photonic Nanostructures

Enhanced broadband transmission through structured plasmonic thin films for transparent electrodes

[+] Author Affiliations
Gangadhar Behera

Indian Institute of Technology Kanpur, Department of Physics, Kanpur 208016, India

S. Anantha Ramakrishna

Indian Institute of Technology Kanpur, Department of Physics, Kanpur 208016, India

J. Nanophoton. 8(1), 083889 (Apr 21, 2014). doi:10.1117/1.JNP.8.083889
History: Received October 7, 2013; Revised February 23, 2014; Accepted February 25, 2014
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Abstract.  Periodic arrays of subwavelength holes in plasmonic thin films can provide for large broadband transmission in the near-infrared spectrum. The optical transmission properties of these thin films with respect to the film thickness, size, and shape of the holes and the period of the arrays was systematically investigated using finite difference time domain computations. Structured gold and silver films of 20-nm thickness can provide for up to 90% transmittance at near-infrared wavelength, thereby rendering them suitable as transparent conducting electrodes for near-infrared emitters or sensors and photovoltaic applications.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Gangadhar Behera and S. Anantha Ramakrishna
"Enhanced broadband transmission through structured plasmonic thin films for transparent electrodes", J. Nanophoton. 8(1), 083889 (Apr 21, 2014). ; http://dx.doi.org/10.1117/1.JNP.8.083889


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