Far-infrared Bandpass Filter Neutral wavelength during 2.0μm-25μm.We adopt silicon, germanium, sapphire ,magnesium fluoride ,Calcium fluoride to be coating.And the peak value is greater than 75%.
Broad-band Anti-reflection
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Broad-band Anti-reflection detailed Far-infrared Bandpass Filter Neutral wavelength during 2.0μm-25μm.We adopt silicon, germanium, sapphire ,magnesium fluoride ,Calcium fluoride to be coating.And the peak value is greater than 75%. |