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--- sshade:databases:doccd:samples [2019/08/26 08:24] – Harald Mutschke
+++ sshade:databases:doccd:samples [2019/08/26 08:24] (current) – Harald Mutschke
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+===== DOCCD Samples and Spectra =====
+We provide **optical constants** of astrophysically relevant solid materials (silicates, oxides, carbonaceous, ...)
+derived from transmission and/or reflection spectra of polished bulk samples (natural, commercial, synthetic)
+measured over various spectral ranges. In several cases, spectra measured on different samples (of the same material)
+and with different instruments are combined in order to derive data covering a large wavelength range.
+In case of crystalline materials, data for different polarization directions are often given.
+Data for low (and sometimes high) temperatures are also available.
+Data entered so far include the following materials:
+  * Mg-Fe silicate and Al-containing silicate glasses produced by melting and quenching (room temperature, UV to FIR)
+  * Mg silicate glasses of different stoichiometry produced by the sol-gel method (room temperature, UV to FIR)
+  * Fe(II)- and Fe(II)-Mg oxides of different Fe/Mg ratios (room temperature, UV to FIR)
+  * Carbonaceous material produced by pyrolysis of cellulose (room temperature, UV to FIR)
+  * Carbonaceous nanoparticles condensed in Ar/H2 atmosphere (isolated in Ar matrix at 14 K, UV/visible)
+  * Quartz, sapphire, and spinel (monocrystalline, T-dependent, IR, polarized)