- Title
- Optical constants in the MIR and FIR for oriented natural anatase and brookite crystals
- DOI
- 10.26302/SSHADE/EXPERIMENT_SB_20200629_001
- Data reference
- Posch, Thomas; Kerschbaum, Franz; Fabian, Dirk; Mutschke, Harald; Dorschner, Johann; Tamanai, Akemi; Henning, Thomas (2003): Optical constants in the MIR and FIR for oriented natural anatase and brookite crystals. SSHADE/DOCCD (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_SB_20200629_001
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Number of spectra
- 5
- Variable type(s)
-
- polarization
- Instrument
- BRUKER 113v – reflection Mid-IR
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 2.0 - 25.0
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- specular
- Observation mode
- fixed angles
- Incidence angle
- 12.0°
- Emergence angle
- 12.0°
- Resolution illumination
- 6.0°
- Resolution observation
- 6.0°
Illumination
- Type of polarization
- no
Observation
- Type of polarization
- linear
- Type of polarizer
- wire-grid polarizer (KRS5)
- Polarization angle
- 0.0°
- Comments
- parallel to the crystallographic axes of the crystal, accuracy $\pm$5 degree
- Observation mode
- single spot
- Spatial resolution
- 4.0 $mm$
- Comments
- Due to a variable sample size, measurements of brookite were performed for E II a and E II c with a 4 mm aperture, for E II b a 2 mm aperture was chosen. The Anatase sample was measured for both orientations with a 2.5 mm aperture.
- Instrument
- BRUKER 113v – reflection Far-IR
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- FIR
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 15.0 - 200.0
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- specular
- Observation mode
- fixed angles
- Incidence angle
- 12.0°
- Emergence angle
- 12.0°
- Resolution illumination
- 6.0°
- Resolution observation
- 6.0°
Illumination
- Type of polarization
- no
Observation
- Type of polarization
- linear
- Type of polarizer
- wire-grid polarizer (PE)
- Polarization angle
- 0.0°
- Comments
- parallel to the crystallographic axes of the crystal, accuracy $\pm$5 degree
- Observation mode
- single spot
- Spatial resolution
- 4.0 $mm$
- Comments
- Due to a variable sample size, measurements of brookite were performed for E II a and E II c with a 4 mm aperture, for E II b a 2 mm aperture was chosen. The Anatase sample was measured for both orientations with a 2.5 mm aperture.
- Date begin
- 2003-01-01
Versions
- Release date
- 2020-07-14 08:41:38 UTC+0000
- Version (Date)
- #1 (2020-07-14 08:41:38 UTC+0000, Updated: 2020-07-14 08:41:38 UTC+0000)