Optical constants of amorphous silicate grains Mg(1-x)FexSiO3, x=0.10, 300 K

Spectrum

Title: Optical constants of amorphous silicate grains Mg(1-x)FexSiO3, x=0.10, 300 K

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Data

Unit: Range: Valid spectral range(s): 0.1 - 416666.666666667 micron

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Position: Visibility:

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)}

$_{(1-x)}$ Fe

_{x}

$_x$ SiO

_{3}

$_3$ , 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

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 ( ${\mu}m$ )	Sampling ( ${\mu}m$ )	Resolution ( ${\mu}m$ )	Position accuracy ( ${\mu}m$ )	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 $_{(1-x)}$ Fe $_x$ SiO $_3$ , x=0.1, HDPE and KBr pellets

Spectrum history

Experiment

Optical constants of Mg- and Fe-rich amorphous silicate Mg

_{(1 - x)}

$_{(1-x)}$ Fe

_{x}

$_x$ SiO

_{3}

$_3$ , 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=0.1, T=300K

Date begin

2022-03-17

Release date

2022-05-31 13:17:40+0000 UTC

Version (Date)

#1 (2022-05-31 13:17:40+0000 UTC, Updated: 2022-11-04 11:05:03+0000 UTC)

History

Date	Mode	Version	Status	Comments
2022-05-25 13:20:29+0000 UTC	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