Optical filters are devices that selectively transmit, reflect, or block light of different wavelengths. Researchers use them in a wide variety of applications, including fluorescence microscopy, Raman spectroscopy, and medical imaging. Typically, optical filters are made of glass or plastic, and they can be coated with a variety of materials to achieve the desired filtering effect.
Semrock specializes in thin film filter technology, which you can learn more about here.
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While many filter types exist, including widely used, off-the-shelf varieties and custom optical filters designed for specific applications, each filter offers unique properties to exert precise control over the light passing through it. Some of the most common types include:
Optical filters are an essential part of optical systems used in many different fields. They are key components that enable doctors, scientists, and engineers to study the world around them in more detail and to create devices that can help study and diagnose diseases.
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