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Laser Line Longpass Filters

Laser Line Longpass Filters

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  • Up to 93% Transmission to Detect Weak Signals
  • Deep > OD 6 Blocking for Maximum Laser Rejection
  • Ideal for Raman Spectroscopy, Confocal Microscopy, and Biotech Instrumentation
  • Unrivaled Performance and Lifetime

Common Specifications

Diameter (mm):
25.00 +0.0/-0.1
Clear Aperture CA (mm):
22
Thickness Tolerance (mm):
±0.1
Clear Aperture (%):
88
Angle of Incidence (°):
0 ±2
Optical Density OD (Average):
≥6.0
Substrate:
Fused Silica (Corning 7980)
Coating:
Hard Coated
Surface Quality:
60-40
Damage Threshold, By Design:
0.5 J/cm2 @ 266nm, 10ns, 10Hz
1 J/cm2 @ 532nm, 10ns, 10Hz
Mount Thickness (mm):
3.5
Durability:
Environmental: MIL-STD-810F, Physical: MIL-C-48497A

Products

Dia. (mm)  Laser Blocking Wavelength (nm)   Transition Width (nm)   Edge Steepness (nm)   Bandwidth (nm)   Transmission Wavelength (nm)   Compare   Stock Number   Price  Buy
25.00 248.6 <5.0 2.0 >250 261 - 560.8 #12-254 A$2,035.20   Request Quote  
  • 3-5 days
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25.00 266 <2.7 2.1 >300 272.4 - 600 #12-255 A$1,804.80   Request Quote  
  • 3-5 days
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25.00 325 <3.3 1.60 >400 329.2 - 733.1 #47-498 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 355 <3.6 1.80 >400 359.6 - 800.8 #47-499 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 473 <4.7 2.40 >550 479.1 - 1066.9 #47-502 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 488 <4.9 2.40 >600 494.3 - 1100.8 #47-503 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 514.5 <5.1 2.60 >600 521.2 - 1160.5 #47-504 A$1,401.60   Request Quote  
  • Contact Us
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25.00 532 <5.3 2.70 >600 538.9 - 1200 #47-505 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 632.8 <6.3 3.20 >600 641 - 1427.4 #47-506 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 785 <7.8 3.90 >900 795.2 - 1770.7 #47-508 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 808 <8.1 4.0 >1000 818.5 - 1822.6 #12-256 A$1,401.60   Request Quote  
  • 3-5 days
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25.00 830 <8.3 4.2 >1000 840.8 - 1872.2 #12-257 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 980 <9.8 4.90 >1000 992.7 - 2000 #47-509 A$1,228.80   Request Quote  
  • 3-5 days
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25.00 1064 <10.6 5.30 >900 1077.8 - 2000 #47-510 A$1,228.80   Request Quote  
  • 3-5 days
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Product Details

Our Laser Line Longpass filters offer unprecedented performance in longpass laser edge filter applications. The steep edges (measured from an optical density of 6.0 to a transmission of 50%) make it possible to measure even the smallest Raman shifts, making these filters a superior alternative to costly holographic notch filters for Stokes Raman scattering measurements. Compared to notch filters, these edge filters offer better transmission, higher laser line blocking, and steeper edges, permitting measurement of Raman signals extremely close to the laser line. The large bandwidths and exceptional transmission permit these filters to be used in even the most demanding imaging applications.

Technical Information