Dielectric Longpass and Shortpass Optical Filters

High performance filters for a range of spectroscopy measurements

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Optical filters from Ossila are available as longpass or shortpass in a range of wavelengths. The filters are perfect for isolating regions of the electromagnetic spectrum for fluorescence measurements, absorption measurements, and more.

Our filters have >90% transmission in the region of transmittance and are OD4 in the suppressed region (~0.01% transmission).

Each individual filter is housed in an outer ring to aid in handling and enhance the OD through prevention of scattering. The ring is labelled with the cut-on/off wavelength and whether the filter is long or shortpass.

You can also buy our , which includes either the longpass filters, shortpass filters, or full range.

Specifications

Dimension	Ø25.0 mm
Thickness	4.0 mm
Optical Density	4

Longpass Transmission

Shortpass Transmission

Optical Filter	Cut-on/off Wavelength	Filter Type
G2101A1	400 nm	Longpass
G2101B1	450 nm	Longpass
G2101C1	500 nm	Longpass
G2101D1	550 nm	Longpass
G2101E1	600 nm	Longpass
G2101F1	650 nm	Longpass
G2101G1	700 nm	Longpass
G2102A1	600 nm	Shortpass
G2102B1	650 nm	Shortpass
G2102C1	700 nm	Shortpass
G2102D1	750 nm	Shortpass
G2102E1	800 nm	Shortpass
G2102F1	850 nm	Shortpass
G2102G1	900 nm	Shortpass