Spectrum

Absorption coefficient of Sri Lanka Olivine, polarization parallel to a-axis

Title
Absorption coefficient of Sri Lanka Olivine, polarization parallel to a-axis
DOI
10.26302/SSHADE/EXPERIMENT_SB_20200511_001
Data reference
Zeidler, Simon; Posch, Thomas; Mutschke, Harald; Wehrhan, Ortrud (2011): Absorption coefficients in the VIS and NIR for oriented San Carlos Olivine and Sri Lanka Olivine crystals. SSHADE/DOCCD (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_SB_20200511_001
Publications
Experiment type
laboratory measurement
Type
absorption coefficient
Intensity unit
$cm^{-1}$
Instrument
Lambda 19 – transmission vis
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.319 - 0.86
Scan number
1
Observation geometry
specular
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
0.0°
Resolution illumination
6.0°
Resolution observation
6.0°
Illumination
Type of polarization
no
Observation
Type of polarization
linear
Type of polarizer
dichroic sheet polarizer
Polarization angle
0.0°
Comments
parallel to the crystallographic axes of the crystal
Observation mode
single spot
Resolutions
5.0 $mm$
Comments
Due to a sample texture streaked by cracks, the measurement of the sample "Sri Lanka Olivine" was performed with a 1 mm aperture.
Instrument
Lambda 19 – transmission NIR
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.86 - 2.0
Scan number
1
Observation geometry
specular
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
0.0°
Resolution illumination
6.0°
Resolution observation
6.0°
Illumination
Type of polarization
no
Observation
Type of polarization
linear
Type of polarizer
dichroic sheet polarizer
Polarization angle
0.0°
Comments
parallel to the crystallographic axes of the crystal
Observation mode
single spot
Resolutions
5.0 $mm$
Comments
Due to a sample texture streaked by cracks, the measurement of the sample "Sri Lanka Olivine" was performed with a 1 mm aperture.
Instrument
BRUKER 113v – transmission 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 1.6 - 7.0
Scan number
64
Observation geometry
specular
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
0.0°
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
Observation mode
single spot
Resolutions
5.0 $mm$
Comments
Due to a sample texture streaked by cracks, the measurement of the sample "Sri Lanka Olivine" was performed with a 1 mm aperture.
Experiment
Absorption coefficients in the VIS and NIR for oriented San Carlos Olivine and Sri Lanka Olivine crystals
Date begin
2011-01-01
Release date
2020-06-26 10:02:05 UTC+0000
Version (Date)
#2 (2020-06-26 10:02:05 UTC+0000, Updated: 2020-06-26 10:02:05 UTC+0000)
History
Date Mode Version Status Comments
2020-05-11 20:50:51 UTC+0000 first import #1 obsolete version first version
2020-06-03 07:02:37 UTC+0000 new version #2 valid version second version
Analysis
The absorption coefficients were derived from the merged transmission spectra by using the Lambert-Beer law, taking simulated reflection losses (based on refractive indices from the literature) into account.
Quality flag
4