Monoclinic Optical Constants, Birefringence, and Dichroism of Slanted Titanium Nanocolumns Determined by Generalized Ellipsometry

Author(s)

Daniel Schmidt, University of Nebraska-Lincoln
Benjamin Booso, University of Dayton
Tino Hofmann, University of Nebraska-Lincoln
Eva Schubert, University of Nebraska-Lincoln
Andrew Sarangan, University of DaytonFollow
Mathias Schubert, University of Nebraska-Lincoln

Document Type

Article

Publication Date

1-2009

Publication Source

Applied Physics Letters

Abstract

Generalized spectroscopic ellipsometry determines the principal monoclinic optical constants of thin films consisting of slanted titanium nanocolumns deposited by glancing angle deposition under 85° incidence and tilted from the surface normal by 47°. Form birefringence measured for wavelengths from 500 to 1000 nm renders the Ti nanocolumns monoclinic absorbing crystals with c-axis along the nanocolumns, b-axis parallel to the film interface, and 67.5° monoclinic angle between the aand c-axes. The columnar thin film reveals anomalous optical dispersion, extreme birefringence, strong dichroism, and differs completely from bulk titanium. Characteristic bulk interband transitions are absent in the spectral range investigated.

ISBN/ISSN

0003-6951

Document Version

Published Version

Comments

Document is made available for download from the repository in compliance with the publisher's policy on self-archiving. Permission documentation is on file.

Copyright

Copyright © 2009, American Institute of Physics.

Publisher

American Institute of Physics

Volume

94

Peer Reviewed

yes

eCommons Citation

Schmidt, Daniel; Booso, Benjamin; Hofmann, Tino; Schubert, Eva; Sarangan, Andrew; and Schubert, Mathias, "Monoclinic Optical Constants, Birefringence, and Dichroism of Slanted Titanium Nanocolumns Determined by Generalized Ellipsometry" (2009). Electrical and Computer Engineering Faculty Publications. 91.
https://ecommons.udayton.edu/ece_fac_pub/91