Product added to cart
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

Stock #86-218 10 to 12 days
- +
Qty 1-9
Qty 10+
Volume Pricing
Request Quote
Get Product Downloads
Diameter (mm):
12.50 +0.0/-0.1
Angle of Incidence (°):
0 ±2
Optical Density OD (Average):
Cut-On Wavelength (nm):
Design Wavelength DWL (nm):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Hard Coated
Surface Quality:
Thickness Tolerance (mm):
Transmission (%):
Longpass Filter
Transition Width (nm):
Clear Aperture (%):
Environmental: MIL-STD-810F
Physical: MIL-C-48497A
Transmitted Wavefront, RMS:
<λ/4 @ 633nm
Mount Thickness (mm):
Bandwidth (nm): >400
Coating Specification:
Tabs ≥93% @ 364 - 400nm
Tavg ≥90% @ 364 - 800nm
Wavelength Range (nm):
355 - 800
Laser Blocking Wavelength (nm):

Regulatory Compliance

RoHS 2015:
Reach 209:
Certificate of Conformance:

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.

Sales & Expert Advice
or view regional numbers
enter stock numbers to begin