Monoclinic Optical Constants, Birefringence, and Dichroism of Slanted Titanium Nanocolumns Determined by Generalized EllipsometryApplied Physics Letters
AbstractGeneralized 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.
Document VersionPublished Version
CopyrightCopyright © 2009, American Institute of Physics.
PublisherAmerican Institute of Physics
Citation InformationDaniel Schmidt, Benjamin Booso, Tino Hofmann, Eva Schubert, et al.. "Monoclinic Optical Constants, Birefringence, and Dichroism of Slanted Titanium Nanocolumns Determined by Generalized Ellipsometry" Applied Physics Letters Vol. 94 (2009)
Available at: http://works.bepress.com/andrew_sarangan/10/