Optical constants of Burma Ortho-enstatite, polarization parallel to the a-axis, MIR/FIR at 10 K
- Title
- Optical constants of Burma Ortho-enstatite, polarization parallel to the a-axis, MIR/FIR at 10 K
- DOI
- 10.26302/SSHADE/EXPERIMENT_SB_20200403_001
- Data reference
- Zeidler, Simon; Mutschke, Harald; Posch, Thomas (2013): T-dependent optical constants of San Carlos Olivine and Burma Ortho-enstatite. SSHADE/DOCCD (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_SB_20200403_001
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- optical constants
- Instrument
- BRUKER 113v – reflection Mid-IR
- Sample holder
- High-temperature cell (SPECAC, windows removed) for temperatures above 300 K, continuous-flow liquid helium cryostat (Cryovac) for temperatures below 300 K
- 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 6.67 - 25.0 - Scan number
- 64
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
- 12.0°
- Emergence angle
- 12.0°
- 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 optical axis of the crystal
- Observation mode
- single spot
- Resolutions
- 5.0 $mm$
- Comments
- Due to a small sample size, measurements of Burma Ortho-enstatite were performed for EIIa and EIIb with a 4 mm aperture at temperature stages of 10 K, 100 K, 200 K and 300 K
- Instrument
- BRUKER 113v – reflection Far-IR
- Sample holder
- High-temperature cell (SPECAC, windows removed) for temperatures above 300 K, continuous-flow liquid helium cryostat (Cryovac) for temperatures below 300 K
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- FIR
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 15.0 - 60.0 - Scan number
- 64
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
- 12.0°
- Emergence angle
- 12.0°
- Resolution illumination
- 6.0°
- Resolution observation
- 6.0°
Illumination
- Type of polarization
- no
Observation
- Type of polarization
- linear
- Type of polarizer
- wire-grid polarizer (PE)
- Polarization angle
- 0.0°
- Comments
- parallel to the optical axis of the crystal
- Observation mode
- single spot
- Resolutions
- 5.0 $mm$
- Comments
- Due to a small sample size, measurements of Burma Ortho-enstatite were performed for EIIa and EIIb with a 4 mm aperture at temperature stages of 10 K, 100 K, 200 K and 300 K
- Name
- Burma Ortho-enstatite (A), surfaces along the crystallographic a-b plane and along the c-axis
- Comments
- smaller sample (A)
- Experiment
- T-dependent optical constants of San Carlos Olivine and Burma Ortho-enstatite
- Date begin
- 2013-01-01
- Release date
- 2020-04-27 08:19:05 UTC+0000
- Version (Date)
- #1 (2020-04-27 08:19:05 UTC+0000, Updated: 2020-04-27 08:19:05 UTC+0000)
- History
-
Date Mode Version Status Comments 2020-04-03 08:09:27 UTC+0000 first import #1 valid version first version
- Analysis
- The optical constants in the MIR/FIR were determined by a Lorentzian oscillator fit of the merged reflectance spectra. The optical constants were calculated for a wavelength range of 6.7-60 µm.
- Quality flag
- 4