Research Papers

Design and characterization of a semiconductor particle array metafilm with capability of near unity absorption in optical spectra

[+] Author Affiliations
Shahab Ramezanpour

Tabriz University, Electrical and Computer Engineering Department, Fields and Waves Group, Tabriz, Iran

Keyvan Ramezanpour

Virginia Tech University, Electrical and Computer Engineering Department, Blacksburg, Virginia, United States

J. Nanophoton. 11(2), 026010 (Jun 01, 2017). doi:10.1117/1.JNP.11.026010
History: Received January 19, 2017; Accepted May 16, 2017
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Abstract.  An approach is proposed for deriving effective layer parameters of a metafilm, based on a combination of the Maxwell–Garnet and generalized sheet transition conditions methods, which can be employed to an arbitrarily shaped particle array. For patch particles, it is revealed that both width and thickness of the particles have a critical role in effective layer parameters. To this end, this paper conceptualizes that with the engineering of width and thickness of the arrayed semiconductor patch particles, near unity absorption can be achieved in the optical frequency range. Our final absorption device contains an array of a specific shape particle, which is a combination of two particles with different widths and thicknesses. The simulation result of the proposed structure is also proved by translation matrix (T-matrix) method.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Shahab Ramezanpour and Keyvan Ramezanpour
"Design and characterization of a semiconductor particle array metafilm with capability of near unity absorption in optical spectra", J. Nanophoton. 11(2), 026010 (Jun 01, 2017). ; http://dx.doi.org/10.1117/1.JNP.11.026010


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