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Proceedings Paper

What are sculptured thin films?
Author(s): Akhlesh Lakhtakia
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Paper Abstract

Sculptured thin films (STFs) are nanoengineered materials with columnar morphology tailored to elicit desired optical responses upon excitation. The identical nanowires comprising a STF are oriented (nominally) parallel to each other, and possess two-- and/or three--dimensional shapes. Two canonical forms of STFs have been formalized. Linear constitutive relations for general STFs as unidirectionally nonhomogeneous (continuously or piecewise uniformly) and locally bianisotropic continuums are presented, along with a 4 x 4 matrix ordinary differential equation for wave propagation therein. A nominal model for the macroscopic properties of linear STFs has been devised from using local homogenization. Several advanced as well as emerging applications of STFs are also discussed.

Paper Details

Date Published: 27 October 2003
PDF: 9 pages
Proc. SPIE 5219, Nanotubes and Nanowires, (27 October 2003); doi: 10.1117/12.524179
Show Author Affiliations
Akhlesh Lakhtakia, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 5219:
Nanotubes and Nanowires
Akhlesh Lakhtakia; Sergey Maksimenko, Editor(s)

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