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Spectrum

Title
  Optical constants of amorphous silicate grains Mg(1-x)FexSiO3, x=0.40, 10 K
UID
  SPECTRUM_KD_20220513_NK_E40_10

References

DOI
  10.26302/SSHADE/EXPERIMENT_KD_20220525
Data reference
  Demyk, Karine (2015): Optical constants of Mg- and Fe-rich amorphous silicate Mg(1-x)FexSiO3, x=0.1 - 0.2 - 0.3 - 0.4, 10-300 K, UV-mm range. SSHADE/STOPCODA (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_KD_20220525
Publications
  - Demyk et al., 2022, Astron. Astrophys., --, --
  - Demyk et al., 2022, Astron. Astrophys., --, --

Owner

Database
  STOPCODA
Experimentalists
  - Karine Demyk

Spectrum type

Experiment type
  laboratory measurement
Type
  optical constants

Instrument #1

Instrument
  Kramers-Kronig calculation of optical constant and numerical extrapolation from UV to cm

Spectral parameters

Standard medium
  vacuum
Observation mode
  spectrum
Spectral range type(s)
  UV, Vis, NIR, MIR, FIR, sub-mm, mm, cm
Valid spectral range(s)

  | Min - Max (μm) | Sampling (μm) | Resolution (μm) | Position accuracy (μm) | Absorption edge
  #1 | 0.024 - 100000.0 |  |  |  |

Comments
  spectral resolution variable with wavelength

Angular parameters

Comments
  transmission

Spatial parameters

Observation mode
  single spot

Sample

Name
  Amorphous silicate Mg(1-x)FexSiO3, x=0.4, HDPE and KBr pellets [◹]

Spectrum history

Experiment
  Optical constants of Mg- and Fe-rich amorphous silicate Mg(1-x)FexSiO3, x=0.1 - 0.2 - 0.3 - 0.4, 10-300 K, UV-mm range [◹]
Parent spectrum
  - Mass abs. coef. spectrum (cm2/g) of amorphous silicate grains Mg(1-x)Fe(x).SiO3, x=0.4, T=10K
Date begin
  2022-03-17
Release date
  2022-05-31 13:17:40 UTC+0000
Version (Date)
  #1 (2022-05-25 13:20:29 UTC+0000, Updated: 2022-09-14 08:20:04 UTC+0000)
History

  Date | Mode | Version | Status | Comments
  2022-05-25 13:20:29 UTC+0000 | first import | #1 | valid version |

Spectrum analysis

Analysis
  The optical constants are calculated from the mass absorption coefficient measured in the 5 - 1000 µm (2000-10 cm-1) domain (with a resolution of 2 cm-1 resolution above 300 cm-1 and 1 cm-1 below). The optical constants are then extrapolated in the range 0.024 - 5 µm and 1000 - 100000 µm. See more details in Demyk et al. 2022.
Quality flag
  5