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All Products / Optics / Optical Filters / Notch Filters / OD 4.0 Notch 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, 25mm Diameter, OD 4.0 Notch Filter

TECHSPEC OD 4.0 Notch Filters

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Stock #67-115 3-5 days
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S$598.85
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S$598.85
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S$469.80
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Diameter (mm):
25.00 +0.00/-0.10
Optical Density OD (Average):
≥4.0
Clear Aperture CA (mm):
21.3
Center Wavelength CWL (nm):
355.00
Design Wavelength DWL (nm):
355
Full Width-Half Max FWHM (nm):
17.80
Coating:
Hard Coated
Surface Quality:
60-40
Thickness (mm):
5.00
Thickness Tolerance (mm):
±0.1
Transmission (%):
90
Transmission Wavelength (nm):
325 - 475
Type:
Notch Filter
Construction:
Mounted in Black Anodized Ring
Reflection at CWL (%):
99
Transmitted Wavefront, RMS:
<1λ
Environmental Durability:
Humidity per MIL-STD-810H, Section 507.6
Temperature per MIL-STD-810H, Section 501.7 and 502.7
Physical Durability:
Adhesion per MIL-PRF-13830B, Section C.4.5.12
Moderate abrasion per MIL-PRF-13830B, Section C.4.5.11
Cleaning per MIL-C-48497A Section 4.5.4.2
Mount Thickness (mm):
5.0
Substrate Thickness (mm):
3.5 ±0.5

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

TECHSPEC® OD 4.0 Notch Filters are low-cost alternatives to Rugate Notch Filters. The filters feature narrow rejection bands of just ±2.5% of the center wavelength while offering greater than 99% reflection of the laser wavelength. These optical filters have a broad transmission range and are hard coated to guarantee performance that will not degrade with time, temperature, or humidity. TECHSPEC® OD 4.0 Notch Filters are mounted in a black anodized ring engraved to ease filter handling, identification, and orientation. OD 6.0 Notch Filters are also available for purchase. 

Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value.

This graph is an example of a standard notch filter transmission curve. For specific wavelength data, please refer to the curve PDF attached to each respective part.
This graph is an example of a standard notch filter transmission curve. For specific wavelength data, please refer to the curve PDF attached to each respective part.
All mounted TECHSPEC® Optical Filters have an arrow on the side of the mount that points to the filter-coated surface for quick reference. Filter oriented such that arrow points to filter coated surface S1. Anti-reflective (AR) coating is applied to S2.
All mounted TECHSPEC® Optical Filters have an arrow on the side of the mount that points to the filter-coated surface for quick reference. Filter oriented such that arrow points to filter coated surface S1. Anti-reflective (AR) coating is applied to S2.