What are sculptured thin films?

Akhlesh Lakhtakia

doi:10.1117/12.524179

27 October 2003 What are sculptured thin films?

Akhlesh Lakhtakia

Proceedings Volume 5219, Nanotubes and Nanowires; (2003) https://doi.org/10.1117/12.524179
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

Citation Download Citation

Akhlesh Lakhtakia "What are sculptured thin films?", Proc. SPIE 5219, Nanotubes and Nanowires, (27 October 2003); https://doi.org/10.1117/12.524179

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KEYWORDS

Thin films

Nanowires

Contrast transfer function

Optical filters

Wave propagation

Dielectrics

Electromagnetism

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