Share Email Print

Journal of Nanophotonics

Three-dimensional periodic chiral sculptured thin films
Author(s): Vijayakumar C. Venugopal
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Sculptured thin films (STFs) are nano-engineered materials that have controllable porosity, structural chirality, and periodicity in one, two, or three dimensions. They have been exploited in developing optical elements such as thin-film filters, polarizers, sensors, and waveguides for integrated optics. A grating theory-based modeling approach for STFs as fully three-dimensional (3-D) periodic structures is developed. Input for this model consists of a structural parameter set that is easily accessible experimentally. This parameter set is common to evaluating STFs from a fabrication as well as modeling perspective and thus furnishes a basis for developing appropriate process monitoring and control methods necessary for successful commercial production. Using the proposed model, a quantitative understanding of the limits of applicability of traditional modeling methods for STFs and guidelines for robust design of STF-based devices are developed. This knowledge gained is applied to explore STFs in two illustrative examples: (1) as a notch filter and (2) as a 3-D photonic crystal.

Paper Details

Date Published: 28 August 2013
PDF: 16 pages
J. Nanophoton. 7(1) 073502 doi: 10.1117/1.JNP.7.073502
Published in: Journal of Nanophotonics Volume 7, Issue 1
Show Author Affiliations
Vijayakumar C. Venugopal, Fiat Lux Technologies, LLC (United States)

© SPIE. Terms of Use
Back to Top