Database of Optical Constants for Cosmic Dust

Laboratory Astrophysics Group of the AIU Jena


Note: Users of these data are kindly asked to cite the original papers. Links to the literature can be found in the header of each class of materials. Thank you. H.M. 23/08/06

Selection
   

Optical Constants of Aluminium-based Oxides:

Corundum (Al2O3, T-dependent data): (Zeidler et al. 2013)
Al2 O3 at 300 K
Spectra

Link to a 300dpi image
Al2 O3 E || c n-k-Data
 
Al2 O3 E || a,b n-k-Data

Al2 O3 at 551 K
Spectra

Link to a 300dpi image
Al2 O3 E || c n-k-Data
 
Al2 O3 E || a,b n-k-Data

Al2 O3 at 738 K
Spectra

Link to a 300dpi image
Al2 O3 E || c n-k-Data
 
Al2 O3 E || a,b n-k-Data

Al2 O3 at 928 K
Spectra

Link to a 300dpi image
Al2 O3 E || c n-k-Data
 
Al2 O3 E || a,b n-k-Data
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Aluminum oxide (amorphous): (Begemann et al. 1997)
Al2 O3 (porous)
Spectran-k-Data

<>Link to a 300dpi and a 600dpi image
 

Al2 O3 (compact)
Spectran-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)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

MgAl2 O4 (natural, annealed 1h, 1223 K)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Additional information
about this natural spinel and the thermal processing
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Synthetic spinel (MgAl2O4, Low-T data, S. Zeidler, Ph.D. thesis, 2013):
MgAl2 O4 at 10 K
Spectra n-k-Data

Link to a 300dpi image
 

MgAl2 O4 at 100 K
Spectra n-k-Data

Link to a 300dpi image
 

Additional information
about oscillator parameters
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Synthetic spinel (MgAl2O4, High-T data): (Zeidler et al. 2013)

MgAl2 O4 at 300 K
Spectra n-k-Data

Link to a 300dpi image
 

MgAl2 O4 at 551 K
Spectra n-k-Data

Link to a 300dpi image
 

MgAl2 O4 at 738 K
Spectra n-k-Data

Link to a 300dpi image
 

MgAl2 O4 at 928 K
Spectra n-k-Data

Link to a 300dpi image
 
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Nonstoichiometric Mg-spinels (crystalline): (Fabian et al. 2001)
Mg1.01 Al1.99 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.94 Al2.04 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.82 Al2.12 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.73 Al2.17 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.53 Al2.31 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.43 Al2.38 O4 (synthetic)
Spectran-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)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg1.00 Al1.98 Cr0.02 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.93 Al1.99 Cr0.03 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.98 Al1.89 Cr0.12 O4 (synthetic)
Spectran-k-Data

Link to a 300dpi and a 600dpi image
 

Mg0.98 Al1.78 Cr0.23 O4 (synthetic)
Spectran-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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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 Listof Publications).


Optical Database main page Laboratory main page Institute home page

Design: Jürgen Weiprecht, Thomas Posch, Malte Meinecke, Benedikt Pfrimmer, Harald Mutschke
Responsible for Data: Harald Mutschke
Images created by Hannes Richter (Sternwarte Wien)
Last modified: 24.02.2020 JW