Holmium Oxide Glass Filter
|Description||Holmium oxide glass filter, solid filter, certified|
|Use||Assessment of wavelength accuracy in both the UV and visible range (279 nm to 638 nm) with a spectral bandwidth up to 2 nm|
|Material||Glass doped with holmium oxide|
The light yellow filter marked F1 is a glass doped with holmium oxide (Ho2O3). The chemical element holmium shows a series of small absorption peaks in UV and Vis range.
Because the exact positions of the holmium peaks vary slightly for each production batch (movement due to the glass matrix), the filters are calibrated individually.
|Type||Material||Thickness||Absorbance at nm|
|666-F1||Holmium Oxide Glass||2,1 mm||279, 361, 454, 536, 638|