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All Products / Optics / Optical Filters / Longpass Filters / Raman Longpass Edge Filters
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

355nm, 12.5mm Diameter, Raman Edge Filter

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Transition Width (nm):
<3.6
Laser Blocking Wavelength (nm):
355.00

Product Details

Type:
Longpass Filter

Physical & Mechanical Properties

Diameter (mm):
12.50 +0.0/-0.1
Thickness Tolerance (mm):
+0.1/-0.1
Clear Aperture (%):
>80

Optical Properties

Angle of Incidence (°):
0 ±2
Optical Density OD (Average):
≥6.0
Cut-On Wavelength (nm):
358.60
Design Wavelength DWL (nm):
355
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Coating:
Hard Coated
Surface Quality:
60-40
Transmission (%):
>90
Transmitted Wavefront, RMS:
<λ/4 @ 633nm
Coating Specification:
Tabs ≥93% @ 364 - 400nm
Tavg ≥90% @ 364 - 800nm
Wavelength Range (nm):
355 - 800

Threading & Mounting

Mount Thickness (mm):
3.5

Environmental & Durability Factors

Durability:
Environmental: MIL-STD-810F
Physical: MIL-C-48497A

Additional Info

Note:
Bandwidth (nm): >400

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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REACH 241:
Compliant
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Product Family Description

  • High Transmission for Detecting Weak Signals
  • Deep Blocking for Maximum Laser Rejection
  • Ideal for Raman Spectroscopy or Life Science Instrumentation 

TECHSPEC® Raman Longpass Edge Filters are single filter solutions for reducing spectral noise in Stokes shift applications. These filters are designed to create sharp transitions between transmitted Raman signals and blocked laser wavelengths. Designed to detect even the smallest Raman shifts, TECHSPEC Raman Longpass Edge Filters are ideal for integration into Raman spectroscopy or confocal microscopy systems. The hard coated design offers superior transmission characteristics than comparable traditional coated filters.