Database of Optical Constants for Cosmic Dust

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	Magnesium-iron sulfides Magnesium-iron oxides (Mg/FeO) Iron oxides (Fe3O4, Fe2O3) Silicon disulfide Aluminum oxide (amorphous) Natural and natural-thermal-processed Mg-spinels (crystalline) Nonstoichiometric Mg-spinels (crystalline) NEW: Mg-spinels with impurities - NIR data (crystalline)! Hibonite (CaAl12O19) Titanium oxides NEW: Rutile and Anatase NIR data!

Optical Constants of Oxides and Sulfides:

Magnesium-iron sulfides: (Begemann et al. 1994)

Mg0.9Fe0.1S Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.75Fe0.25S Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.5Fe0.5 S Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.1Fe0.9 S Spectra n-k-Data Link to a 300dpi and a 600dpi image   Fe S Spectra n-k-Data Link to a 300dpi and a 600dpi image

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Magnesium-iron oxides: (Henning et al. 1995)

Mg0.6 Fe0.4 O [4.79 g/ccm] Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.5 Fe0.5 O Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.3 Fe0.7 O [5.05 g/ccm] Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.2 Fe0.8 O [5.25 g/ccm] Spectra n-k-Data <>Link to a 300dpi and a 600dpi image   Mg0.1 Fe0.9 O [5.46 g/ccm] Spectra n-k-Data Link to a 300dpi and a 600dpi image   FeO [5.70 g/ccm] Spectra n-k-Data Link to a 300dpi and a 600dpi image

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Iron oxides, created by Amaury H.M.J. Triaud, (Amaury.Triaud@obs.unige.ch) unpublished:

Fe3 O4 Spectra n-k-Data Link to a 300dpi image   Fe2 O3, E || a,b Spectra n-k-Data Link to a 300dpi image

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Silicon disulfide: (Begemann et al. 1996)

Si S2 Spectra n-k-Data Link to a 300dpi and a 600dpi image

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Aluminum oxide (amorphous): (Begemann et al. 1997)

Al2 O3 (porous) Spectra n-k-Data <>Link to a 300dpi and a 600dpi image   Al2 O3 (compact) Spectra n-k-Data Link to a 300dpi and a 600dpi image

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Natural and natural-thermal-processed Mg-spinels (crystalline) (Fabian et al. 2001)

MgAl2 O4 (natural) Spectra n-k-Data Link to a 300dpi and a 600dpi image   MgAl2 O4 (natural, annealed 1h, 1223 K) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Additional information about this natural spinel and the thermal processing

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Nonstoichiometric Mg-spinels (crystalline): (Fabian et al. 2001)

Mg1.01 Al1.99 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.94 Al2.04 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.82 Al2.12 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.73 Al2.17 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.53 Al2.31 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.43 Al2.38 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Additional information concerning the production and properties of these nonstoichiometric spinel

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Mg-spinels with impurities (crystalline) - NIR data: (Zeidler et al. 2011)

Mg1.02 Al1.93 Cr0.0087 Fe0.012 O4 (natural, Burma) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg1.00 Al1.98 Cr0.02 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.93 Al1.99 Cr0.03 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.98 Al1.89 Cr0.12 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image   Mg0.98 Al1.78 Cr0.23 O4 (synthetic) Spectra n-k-Data Link to a 300dpi and a 600dpi image

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Hibonite (CaAl12O19): (Mutschke et al. 2002)

Spectra Link to a 300dpi and a 600dpi image Hibonite E || c n-k-Data   Hibonite E || a,b n-k-Data

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Titanium oxides: (Posch et al. 2003, Zeidler et al. 2011)

TiO2 (Rutile, ord. ray) Spectra Link to a 300dpi and a 600dpi image Rutile E || a,b n-k-Data TiO2 (Rutile, extraord. ray) Spectra Link to a 300dpi and a 600dpi image Rutile E || c n-k-Data TiO2 (Anatase) Spectra Link to a 300dpi and a 600dpi image Anatase E || c n-k-Data Anatase E || a,b n-k-Data TiO2 (Anatase) NIR absorption Spectra Link to a 300dpi and a 600dpi image k-Data TiO2 (Brookite) Spectra Link to a 300dpi and a 600dpi image Brookite E || x n-k-Data Brookite E || y n-k-Data Brookite E ||z n-k-Data CaTiO3 (Perovskite) Spectra n-k-Data Link to a 300dpi and a 600dpi image

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All n-k-Data tables consist of three columns. The first one contains the wavelength in micron (in the case of the Mg/Fe sulfides centimeter). The second one is the real part of the complex refractive index (n), the third one is the imaginary part (k). Values in brackets given after the chemical formulae are the material densities (if available).

For the details of the derivation of all n-k-Data I refer to the mentioned publications (see the List of Publications).