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In the fast growing
category of applications and instrumentation which utilise laser
sourcessuch as Raman Spectroscopy, Confocal and Multiphoton
Microscopy, and Flow Cytometryit is critical to eliminate all
unwanted laser background, scatter, and plasma in order to optimise
signal-to-noise. Laser line and shortpass edge filters can be used to
clean-up the signal at the laser source. Longpass edge
and laser rejection filters can be used for rejecting
unwanted noise at the detector. A combination of laser filter
solutions can provide performance superior to Holographic Notch
filters at significantly less cost.
Laser Line Interference Filters
These filters pass a
limited band centered on the resonance of the laser and attenuate the
background plasma and secondary emissions that often result in
erroneous signals. In the case of diode lasers, these filters can be
used to make the light output more monochromatic. Laser line filters
provide 70 - 90% throughput with spectral control from 0.85 10 1.15
of the CWL. An accessory blocker can be ordered to control a much
wider spectral range from the deep UV to the IR. This additional
blocker results in a minor (20%) loss of throughput
Part Number |
Descriptor |
Laser
Line |
Size (mm) |
Typical min
T @ l* |
CWL
Tol. |
FWHM
Tol. (+/-) |
Blocking
Range |
|
Part Number
Full Blocking |
Additional
Blocking
Full |
XL01 |
266BP15 |
4th Nd Yag |
25mm |
20% |
+2.2nm
-1.5nm |
0.3nm |
UV - FIR |
|
None Required |
None Required |
XL02 |
325NB2 |
HeCd |
25mm |
25% |
+0.3nm
-0.2nm |
0.4nm |
0.9 x CWL -
1.1 X CWL |
|
XLK02 |
UV-2500nm |
XL03 |
355NB3 |
3rd Nd Yag |
25mm |
60% |
+0.4nm
-0.3nm |
0.6nm |
0.9 x CWL -
1.1 X CWL |
|
XLK03 |
UV-2500nm |
XL04 |
442NB2 |
HeCd |
25mm |
60% |
+0.3nm
-0.2nm |
0.4nm |
0.85 X CWL -
1.15 x CWL |
|
XLK04 |
UV-2500nm |
XL05 |
457NB2 |
Argon |
25mm |
60% |
+0.3nm
-0.2nm |
0.4nm |
0.85 X CWL -
1.15 x CWL |
|
XLK05 |
UV-2500nm |
XL06 |
488NB3 |
Argon |
25mm |
80% |
+0.4nm
-0.3nm |
0.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK06 |
UV-2500nm |
XL07 |
515NB3 |
Argon |
25mm |
80% |
+0.4nm
-0.3nm |
0.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK07 |
UV-1500nm |
XL08 |
532NB3 |
2nd Nd Yag |
25mm |
80% |
+0.4nm
-0.3nm |
0.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK08 |
UV-1500nm |
XL09 |
543NB3 |
HeNe Green |
25mm |
80% |
+0.4nm
-0.3nm |
0.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK09 |
UV-1500nm |
XL10 |
594NB3 |
HeNe Yellow |
25mm |
80% |
+0.4nm
-0.3nm |
0.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK10 |
UV-1150nm |
XL11 |
612NB3 |
HeNe Yellow |
25mm |
80% |
+0.4nm
-0.3nm |
0.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK11 |
UV-1150nm |
XL12 |
633NB4 |
HeNe Red |
25mm |
80% |
+0.6nm
-0.4nm |
0.8nm |
0.85 X CWL -
1.15 x CWL |
|
XLK12 |
UV-1150nm |
XL13 |
647NB4 |
Krypton |
25mm |
80% |
+0.6nm
-0.4nm |
0.8nm |
0.85 X CWL -
1.15 x CWL |
|
XLK13 |
UV-1150nm |
XL14 |
676NB4 |
Krypton |
25mm |
80% |
+0.6nm
-0.4nm |
0.8nm |
0.85 X CWL -
1.15 x CWL |
|
XLK14 |
UV-1150nm |
XL15 |
665WB25 |
AlGaAs |
25mm |
80% |
+3.7nm
-2.5nm |
5nm |
0.85 X CWL -
1.15 x CWL |
|
XLK15 |
UV-1150nm |
XL16 |
694NB4 |
Ruby |
25mm |
80% |
+0.6nm
-0.4nm |
0.8nm |
0.85 X CWL -
1.15 x CWL |
|
XLK16 |
UV-1150nm |
XL17 |
775WB25 |
AlGaAs |
25mm |
85% |
+3.7nm
-2.5nm |
5nm |
0.85 X CWL -
1.15 x CWL |
|
XLK17 |
UV-2500nm |
XL18 |
825WB25 |
AlGaAs |
25mm |
85% |
+3.7nm
-2.5nm |
5nm |
0.85 X CWL -
1.15 x CWL |
|
XLK18 |
UV-2500nm |
XL19 |
850WB25 |
AlGaAs |
25mm |
85% |
+3.7nm
-2.5nm |
5nm |
0.85 X CWL -
1.15 x CWL |
|
XLK19 |
UV-2500nm |
XL20 |
875WB25 |
AlGaAs |
25mm |
85% |
+3.7nm
-2.5nm |
5 nm |
0.85 X CWL -
1.15 x CWL |
|
XLK20 |
UV-2500nm |
XL21 |
1060NB8 |
1st Nd Yag |
25mm |
85% |
+1.2nm
-0.8nm |
1.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK21 |
UV-1500nm |
XL22 |
1064NB8 |
1st Nd Yag |
25mm |
80% |
+1.2nm
-0.8nm |
1.6nm |
0.85 X CWL -
1.15 x CWL |
|
XLK22 |
UV-1500nm |
XL23 |
1152NB10 |
HeNe IR |
25mm |
80% |
+1.5nm
-1nm |
2nm |
0.85 X CWL -
1.15 x CWL |
|
XLK23 |
UV-1350nm |
XL24 |
1310WB40 |
InGaAsP |
25mm |
80% |
+6nm
-4nm |
8nm |
0.85 X CWL -
1.15 x CWL |
|
XLK24 |
UV-1800nm |
XL25 |
1320NB10 |
Nd Yag |
25mm |
80% |
+1.5nm
-1nm |
2nm |
0.85 X CWL -
1.15 x CWL |
|
XLK25 |
UV-1800nm |
XL26 |
1523NB10 |
HeNe IR |
25mm |
80% |
+1.5nm
-1nm |
2nm |
0.85 X CWL -
1.15 x CWL |
|
XLK26 |
UV-1800nm |
XL27 |
1550WB50 |
InGaAsP |
25mm |
80% |
+7.5nm
-5nm |
10nm |
0.85 X CWL -
1.15 x CWL |
|
XLK27 |
UV-1800nm |
XL28 |
1550NB10 |
InGaAsP |
25mm |
80% |
+1.5nm
-1nm |
2nm |
0.85 X CWL -
1.15 x CWL |
|
XLK28 |
UV-1800nm |
Specifications:
Diameter
Tolerance +0, - 0.5mm
Thickness: 3.5mm
Thickness
with Blocking: < 8mm
Average
Blocking: OD 5
Minimum
Blocking: OD 3
* T
value for filter component; Addition of blocking component will
reduce T by ~ 20%. |
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