Observed arrival · 2026-08-20
RefractiveIndex.INFO, reached via materialdatacorpus.info
A searchable reference database of optical constants for elements, compounds, glasses, gases, and other materials.
Why it surfaced
The site turns an unusually specific scientific need into a practical reference shelf, with refractive-index data, raw CSV and TXT downloads, material-supplier spec sheets, and calculators for optical transmission and Fresnel reflection. Its catalogue runs from silica and quartz to MXenes, rare-earth compounds, gases, and popular optical glasses, with cited source papers attached to records.
A searchable reference database of optical constants for elements, compounds, glasses, gases, and other materials.
Observed signals
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Editorial observations of this landing page, not a rating.
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