Notch Filters

Notch Filters are specialized optical filters designed to reject a narrow band of wavelengths while transmitting the surrounding wavelengths with high efficiency. They provide high optical density at the center wavelength, enabling effective suppression of specific laser lines without significantly affecting the adjacent spectral regions. Manufactured using advanced dielectric thin-film coating technology, these filters offer excellent spectral accuracy, high transmission, superior environmental durability, and long-term optical stability. Available in a variety of center wavelengths and standard sizes, Notch Filters are ideal for applications including Raman spectroscopy, fluorescence imaging, laser systems, machine vision, biomedical instrumentation, optical sensing, and scientific research.