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UV Beam Displacers
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These simple MgF2 components provide a means of separating polarized beams with constant displacement. The UV beam displacers are oriented with entrance and exit faces parallel and inclined at 45° to the optic axis to maximise the displacement.
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Displacement Factor
The displacement factor that relates the lateral offset to thickness varies from 0·003 to 0·009 over the usable spectral range 120nm - 480nm.
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Mounts
These displacers are supplied unmounted as free components unless mounting is specified at the time of ordering. The mount design is in the form of a simple tube with silicone rubber, giving access to the input and output beams.To specify mounted displacers, simply add suffix:
M2 for Type 2 mount (shown)
RM5 for Type 5 rotation mount
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Specifications
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All Components
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Spectral Range (nm)
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140-480
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Peak Transmission (%)
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92
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Model #
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Aperture (mm)
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Length (mm)
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Displacement (mm)
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Beam Dev. (min)
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Flatness @NaD
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Max Peak Power (MW/cm2)
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Max CW Power (W/cm2)
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Mount Dia. (mm)
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Mount Length (mm)
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10mm aperture
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BSF10-20
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10
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20
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0.18
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<3
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lambda/8
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200
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100
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25.4
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22
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BSF10-30
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10
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30
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0.27
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<3
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lambda/8
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200
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100
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25.4
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32
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BSF10-40
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10
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40
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0.36
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<3
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lambda/8
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200
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100
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25.4
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42
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BSF10-50
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10
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50
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0.45
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<3
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lambda/8
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200
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100
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25.4
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52
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BSF10-60
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10
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60
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0.54
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<3
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lambda/8
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200
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100
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25.4
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62
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12mm aperture
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BSF12-20
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12
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20
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0.18
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<3
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lambda/8
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200
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100
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25.4
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22
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BSF12-30
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12
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30
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0.27
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<3
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lambda/8
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200
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100
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25.4
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32
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BSF12-40
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12
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40
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0.36
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<3
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lambda/8
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200
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100
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25.4
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42
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BSF12-50
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12
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50
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0.45
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<3
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lambda/8
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200
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100
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25.4
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52
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BSF12-60
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12
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60
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0.54
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<3
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lambda/8
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200
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100
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25.4
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62
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