Research Papers

Design and optimization of ultrathin spectral filters based on silicon nanocross antenna arrays

[+] Author Affiliations
Ravi Sadananda Hegde

Indian Institute of Technology, AB 6/351, Department of Electrical Engineering, Gandhinagar, Palaj, Gujarat 382355, India

Kaustubh S. Panse

Indian Institute of Technology, AB 6/211, Department of Material Science and Engineering, Gandhinagar, Palaj, Gujarat 382355, India

J. Nanophoton. 10(2), 026030 (Jun 30, 2016). doi:10.1117/1.JNP.10.026030
History: Received March 15, 2016; Accepted June 15, 2016
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Abstract.  Plasmonic nanoantenna arrays have been investigated in connection with spectral filtering applications in the last decade. We show that an all-dielectric nanoantenna can also perform a similar function. We propose a nanocross-shaped nanoantenna array design and present a numerical study of spectral filters based on this design. A broad gamut of colors is achievable in both the reflective and transmissive modes and is reasonably robust to fabrication-related imperfections. These all-dielectric ultrathin spectral filters are promising for the realization of multispectral image sensors and low-power displays.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Ravi Sadananda Hegde and Kaustubh S. Panse
"Design and optimization of ultrathin spectral filters based on silicon nanocross antenna arrays", J. Nanophoton. 10(2), 026030 (Jun 30, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.026030


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