Experiment
Title
Calcite: Vis-NIR and Mid-IR diffuse reflectance, MIR specular reflectance and Raman spectra of powders and blocks
DOI
10.26302/SSHADE/EXPERIMENT_BS_20220803_001
Data reference
Schmitt, Bernard; Leclef, Apolline; Montagnac, Gilles (2021): Calcite: Vis-NIR and Mid-IR diffuse reflectance, MIR specular reflectance and Raman spectra of powders and blocks. SSHADE/GhoSST+DRIMS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20220803_001
Type(s)
laboratory measurement
Description
Calcite: Visible Near-IR bidirectional diffuse reflectance, Mid-IR biconical diffuse reflectance, Mid-IR microscopic specular reflectance and micro-Raman Far-IR & Mid-IR spectra of powders and blocks
Number of spectra
15
Variable type(s)
  • sample texture
  • sample grain size
  • chemical variability
  • spectrum type
  • spectral range
  • observation mode
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
cylindrical raw aluminium sample holders of various sizes for powders
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge
#1 400.0 - 678.0 4.0 1.92 0.5
#2 682.0 - 1598.0 4.0 3.8 0.5
#3 1602.0 - 2834.0 4.0 7.65 0.8
#4 2842.0 - 4650.0 8.0 15.45 1.6
Filters
Type Center/Edge ($nm$) Width ($nm$) Place
#1 several high frequency filters output of monochromator
Comments
slit 600µm, resolution vary by up to $\pm2.5%$ over each spectral range
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
30.0°
Azimuth angle
0.0°
Phase angle
30.0°
Resolution illumination
5.8°
Resolution observation
4.1°
Illumination
Observation
Comments
some wavelength dependent polarization
Observation mode
single spot
Spatial resolution
7.5 ${\pm}$ 0.2 $mm$
Comments
illumination with 9 fiber optic spots within 7.5 mm diameter, observation within an ellipse of 23x20 mm
Instrument
SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
cylindrical raw aluminium sample holders of various sizes for powders
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge
#1 400.0 - 678.0 4.0 1.92 0.5
#2 682.0 - 1598.0 4.0 3.8 0.5
#3 1602.0 - 2834.0 4.0 7.65 0.8
#4 2842.0 - 4650.0 8.0 15.45 1.6
Filters
Type Center/Edge ($nm$) Width ($nm$) Place
#1 several high frequency filters output of monochromator
Comments
slit 600µm, resolution vary by up to $\pm2.5%$ over each spectral range
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
30.0°
Azimuth angle
0.0°
Phase angle
30.0°
Resolution illumination
5.8°
Resolution observation
4.1°
Illumination
Observation
Comments
some wavelength dependent polarization
Observation mode
single spot
Spatial resolution
5.2 ${\pm}$ 0.2 $mm$
Comments
illumination with 8 fiber optic spots within 5.2 mm diameter, observation within an ellipse of 23x20 mm
Instrument
Brucker Vertex 70 #2 – reflection Mid-IR
Sample holder
cylindrical raw aluminium sample holders of various sizes for powders
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
NIR, MIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 540.0 - 7500.0 0.482 1.0 0.1
Observation geometry
biconical
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
30.0°
Azimuth angle
0.0°
Phase angle
30.0°
Illumination
Observation
Comments
some wavelength dependent polarization
Observation mode
single spot
Spatial resolution
4.0 ${\pm}$ 0.5 $mm$
Instrument
Brucker Vertex 70 + Hyperion 3000 – micro-reflection Mid-IR
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
MIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 550.0 - 7500.0 0.482 1.0 0.1
Observation geometry
specular
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
0.0°
Azimuth angle
0.0°
Phase angle
0.0°
Illumination
Observation
Comments
some wavelength dependent polarization
Observation mode
single spot
Objective type
x100
Instrument
Micro-Raman LabRam HR800 - 532 nm
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
MIR, FIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 60.0 - 2000.0 1.55 3.3 0.2
Filters
Type Center/Edge ($cm^{-1}$) Width ($cm^{-1}$) Place
#1 532.3 nm Edge filter 100.0
Comments
Sampling varies from 1.83 to 1.5 $cm^{-1}$ in the 60-2000 $cm^{-1}$ range and 1.3 to 1.1 $cm^{-1}$ in the 2750-4000 $cm^{-1}$ range. Edge filter: 532.3 nm transition width 100 $cm^{-1}$
Observation geometry
confocal
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
0.0°
Observation mode
single spot
Objective type
x50
Spatial resolution
1.0 ${\mu}m$
Comments
spot of 1 µm in diameter
Date begin - end
2021-03-05 - 2022-07-04

Versions

Release date
2024-06-09 15:59:28 UTC+0000
Version (Date)
#1 (2024-06-09 15:59:28 UTC+0000, Updated: 2024-06-09 16:01:14 UTC+0000)
Sponsors
  • Observatoire des Sciences de l'Univers (OSUG) (SNO SSHADE)