Contact Us

Notch Filter

  • Introduction

Notch Filter

The notch filter, in contrast to a narrow band filter, intercepts light in a particular wavelength range by transmitting light at most wavelengths.

Notch filters are useful in applications where it is necessary to filter out the laser light. For example, in drug bioassays, in order to obtain a good signal-to-noise ratio in Raman spectroscopy experiments, it is necessary to suppress the pumping laser, which can be achieved by placing a notch filter on the detection channel. Notch optical filters are also often used in laser-based fluorescence instruments and in biomedical laser systems.

Notch Filter wavelength

Related Content
  • Colored Glass Filter

    Colored Glass Filter

    February 17, 2017Tinted glass filter is a performance of the color of the optical filter, which absorbs undesired through the band of the way, to precisely select the range of light waves to pass.Tinted glass is a low...view
  • Dove Prism

    Dove Prism

    February 17, 2017Dove prisms are used as reflective prism inverting the image. Dove prism is shaped from a truncated right-angle prism. Normally, dove prisms are used in the parallel optical path based on critical ang...view
  • Achromatic Triplet Lenses

    Achromatic Triplet Lenses

    March 10, 2017A triplet lens is a compound lens consisting of three single lenses. The triplet design is the simplest to give the required number of degrees of freedom to allow the lens designer to overcome all Sei...view