Due to inclement weather, our corporate headquarters is closing early today, March 5th at 12 PM EST.
There will be NO shipments from our Barrington, NJ warehouse for orders place after 2:45 PM EST. We apologize for the inconvenience. 
If you have sales or technical questions, please continue to call and chat and our global staff will assist you.

 

Notch Filters are used in Raman spectroscopy, confocal or multi-photon microscopy, laser-based fluorescence instrumentation, or other life science applications. Notch Filters are Optical Filters that selectively reject a portion of the spectrum, while transmitting all other wavelengths. Notch Filters feature dielectric coatings to reflect laser wavelengths.

Edmund Optics offers a wide variety of Optical Filters, including a range of Notch Filters. Edmund Optics’ Notch Filters feature OD4 or OD6 blocking, or multi-notch capability. OD4 Notch Filters feature narrow rejection bands of just ±2.5% of the center wavelength, while offering greater than 99% reflection of the designated laser wavelength. OD6 Notch Filters are used in applications that require deep blocking of a narrow wavelength range, while offering broad transmission of the other wavelengths. OD6 Notch Filter applications include laser-based Raman spectroscopy, fluorescence, or for integration into life science systems. Multi-Notch Filters are for applications that require the rejection of multiple narrow bands without the use of a multi-filter setup.