Infrared optical constants for Mg-Fe-Al-silicate glass with Al(Al+Si)=0.10
- Title
- Infrared optical constants for Mg-Fe-Al-silicate glass with Al(Al+Si)=0.10
- DOI
- 10.26302/SSHADE/EXPERIMENT_HM_20180417_001
- Data reference
- Begemann, Birgit; Mutschke, Harald; Dorschner, Johann; Henning, Thomas (1996): Infrared optical constants or amorphous Al-silicates. SSHADE/DOCCD (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_HM_20180417_001
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- optical constants
- Comments
- The spectrum was resampled between 6.7 and 850 µm with equidistant wavenumber steps
- 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 - Scan number
- 64
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°
- Phase angle
- 0.0°
- Resolution illumination
- 6.0°
- Resolution observation
- 6.0°
- Comments
- crystal main axis perpendicular to plane of incidence
Illumination
- Type of polarization
- no
Observation
- Type of polarization
- no
- Observation mode
- single spot
- Resolutions
- 5.0 $mm$
- 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 - 500.0 - Scan number
- 64
- Comments
- For the samples produced by quenching with copper rollers, the usable spectral range was limited by fringes to wavelengths smaller than 100 micronmeters
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°
- Phase angle
- 0.0°
- Resolution illumination
- 6.0°
- Resolution observation
- 6.0°
- Comments
- crystal main axis perpendicular to plane of incidence
Illumination
- Type of polarization
- no
Observation
- Type of polarization
- no
- Observation mode
- single spot
- Resolutions
- 5.0 $mm$
- Experiment
- Infrared optical constants or amorphous Al-silicates
- Date begin
- 1996-01-01
- Release date
- 2019-07-09 13:29:34 UTC+0000
- Version (Date)
- #1 (2019-07-09 13:29:34 UTC+0000, Updated: 2019-07-09 08:41:18 UTC+0000)
- History
-
Date Mode Version Status Comments 2018-04-25 15:27:28 UTC+0000 first import #1 valid version first version
- Analysis
- The optical constants were determined from the merged MIR and FIR reflectance spectra by Kramers-Kronig analysis; the reflectance at wavelengths larger than 100 micron was continued with constant values
- Quality flag
- 4