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Notched Filters

Features:

  • High Transmission at Transmitting wavelength range
  • Lower Transmission at Rejected wavelength OD4 to OD6
  • Laser Line Wavelength Available

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Specifications:

Materials BK7 or UV Fused Silica Size customized
Optical Density at Rejection Wavelength OD4 or OD6 High Transmission at Transmission Wavelength Range >90% or customized
Aperture >90% Transmitted Wavefront Distortion λ/4@633nm or λ/10@ 633nm
Parallelism <30 arc second Surface Quality 40/20 S/D

Notched filters would transmit most wavelength with little intensity loss and attenuate light within a wavelength band to a very low level, Notch filter is actually a kind of band-stop or band-rejection filters , it is often used in the application when one needs to block light from a laser. 

Hangzhou Shalom EO supplies the Notched filters with high transmission at transmitting wavelength range of 90% and lower transmission at rejected wavelength of OD4 to OD6, the laser lines of 405nm, 488nm, 514nm, 533nm, 561nm, 594nm, 633nm, 658nm, 785nm,8 08nm, 980nm and 1064 nm.

Curve Samples of Notched Filters: