Filters: Short-Wave Pass0 pages
Short Wave Pass Filter for 8-12um
Information Sheet
Application
Short wavepass filters are designed to achieve efficient separation of adjacent spectral bands. The cut-off edge
of the filter may be located between 0.85 and 13 microns.
Substrate
Germanium
Transmission
Typically >85% at wavelengths shorter than the cut-off edge.
Extent of transmission region is typically in the ratio of 2:1
Attenuation
Typically <0.1% outside the passband.
Edge Slopes
Typically between 3% and 5%
Environmental
Adhesion
Abrasion
Humidity
MIL-C-48497A, 08/09/1980, para 4.5.3.1
MIL-C-48497A, 08/09/1980, para 4.5.3.3
MIL-C-48497A, 08/09/1980, para 4.5.3.2
Tape test
Moderate, 50 strokes with a cheesecloth
o
24hrs, 48 , 95% relative humidity
Typical Transmission Profile
100
Transmission (%)
80
60
40
20
0
8
9
10
11
12
13
14
Wavelength (um)
Umicore Coating Services
Kinnoull Street
Dundee, DD2 3ED
Tel: +44 1382 833022
Fax: +44 1382 833824
E-mail: coatingservices@umicore.com
UCS reserves the right to amend or withdraw specifications without prior notice
Vat No: 503 0068 05
Registration No: 118425
Issue No. 01-11