- 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/DRIMS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20220803_001
- Database(s)
- Experimentalists
- 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
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
- 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
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
- 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
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
- 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 $mm$
- 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
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
- 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: 2024-07-10 17:41:11 UTC+0000)
- Sponsors
-
- Observatoire des Sciences de l'Univers (OSUG) (SNO SSHADE)