Spectrum

MIR Raman spectrum (532 nm - Paris) of Magnesite cristal (Mag) - Mg # = 99.4%

Title
MIR Raman spectrum (532 nm - Paris) of Magnesite cristal (Mag) - Mg # = 99.4%
DOI
10.26302/SSHADE/EXPERIMENT_BS_20240605_001
Data reference
Beck, Pierre; Beyssac, Olivier; Schmitt, Bernard (2023): Near and Mid-IR reflectance, Mid-IR transmission and Raman emission spectra of a series of Fe-Mg carbonates along the Siderite-Magnesite solid solution. SSHADE/DRIMS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20240605_001
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
Raman scattering intensity
Intensity unit
AU
Instrument
Renishaw InVia Reflex microRaman 532nm
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
MIR
Excitation wavelength
532 nm
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 467.0 - 1664.0 1.2 2.4 0.3
Filters
Type Center/Edge ($cm^{-1}$) Width ($cm^{-1}$) Place
#1 532 nm notch filter
Comments
Resolution varies from 2.6 cm-1 @ 450 cm-1 to 2.15 cm-1 @ 1650 cm-1. Sampling varies from 1.3 to 1.07 $cm^{-1}$ in the 450-1650 $cm^{-1}
Observation geometry
confocal
Observation mode
fixed angles
Emergence angle
0.0°
Azimuth angle
0.0°
Illumination
Observation
Comments
All measurements were performed with a circularly polarized laser using a ¼-wave plate placed before the microscope to minimize polarization effects
Observation mode
single spot
Objective type
x50
Resolutions
1.0 ${\mu}m$
Name
Magnesite Brumado, Brésil (Mag) powder
Comments
measured on ~10 grains
Experiment
Near and Mid-IR reflectance, Mid-IR transmission and Raman emission spectra of a series of Fe-Mg carbonates along the Siderite-Magnesite solid solution
Date begin
2023-06-20
Release date
2024-07-10 17:01:31 UTC+0000
Version (Date)
#1 (2024-07-10 17:01:31 UTC+0000, Updated: 2024-07-10 18:00:48 UTC+0000)
History
Date Mode Version Status Comments
2024-06-09 11:26:05 UTC+0000 first import #1 valid version
Analysis
Excitation wavelength = 532nm - Wavelength calibrated using a silicon waffer (520.7 cm-1)
Quality flag
4
Validator(s)