MIR normalized specular reflection spectrum of Calcite monocrystal spar (spot #2)
- Title
- MIR normalized specular reflection spectrum of Calcite monocrystal spar (spot #2)
- 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
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- normalized reflectance
- Intensity unit
- no unit
- Reference position
- 1516.0 $cm^{-1}$
- 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
- Experiment
- Calcite: Vis-NIR and Mid-IR diffuse reflectance, MIR specular reflectance and Raman spectra of powders and blocks
- Date begin
- 2021-04-28
- 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)
- History
-
Date Mode Version Status Comments 2022-08-19 19:39:50 UTC+0000 first import #1 valid version
- Analysis
- raw specular reflection spectrum calibrated in relative reflectance with "matte gold plate" measured under same geometry assuming flat spectral reflectance over the whole 7500-520 $cm^{-1}$ range, and normalized to 1 at the main reflection maximum at 1516 $cm^{-1}$ . Weak residual water vapor lines (between 2980-3170 and 3500-4000 $cm^{-1}$ ) and $CO_2$ vapor lines (around 670 and 2270-2400 $cm^{-1}$ ) have been corrected by linear interpolation.
- Quality flag
- 4
- Validator(s)