Monoclinic optical constants, birefringence, and dichroism of slanted titanium nanocolumns determined by generalized ellipsometry

Daniel Schmidt; Benjamin Booso; Tino Hofmann; Eva Schubert; Andrew Sarangan; Mathias Schubert

doi:10.1063/1.3062996

Monoclinic optical constants, birefringence, and dichroism of slanted titanium nanocolumns determined by generalized ellipsometry

Daniel Schmidt
, Benjamin Booso
, Tino Hofmann
, Eva Schubert
, Andrew Sarangan
, Mathias Schubert

Research output: Contribution to journal › Article › peer-review

73 Scopus citations

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 a - and 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.

Original language	English (US)
Article number	011914
Journal	Applied Physics Letters
Volume	94
Issue number	1
DOIs	https://doi.org/10.1063/1.3062996
State	Published - 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3062996

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title = "Monoclinic optical constants, birefringence, and dichroism of slanted titanium nanocolumns determined by generalized ellipsometry",

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 a - and 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.",

author = "Daniel Schmidt and Benjamin Booso and Tino Hofmann and Eva Schubert and Andrew Sarangan and Mathias Schubert",

year = "2009",

doi = "10.1063/1.3062996",

language = "English (US)",

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journal = "Applied Physics Letters",

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T1 - Monoclinic optical constants, birefringence, and dichroism of slanted titanium nanocolumns determined by generalized ellipsometry

AU - Schmidt, Daniel

AU - Booso, Benjamin

AU - Hofmann, Tino

AU - Schubert, Eva

AU - Sarangan, Andrew

AU - Schubert, Mathias

PY - 2009

Y1 - 2009

N2 - 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 a - and 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.

AB - 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 a - and 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.

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M3 - Article

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SN - 0003-6951

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 1

M1 - 011914

ER -

Monoclinic optical constants, birefringence, and dichroism of slanted titanium nanocolumns determined by generalized ellipsometry

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All Science Journal Classification (ASJC) codes

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