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Dichroic Coatings

High Power Dichroic Mirror Coatings
Laser Components USA, Inc.
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High Power Dichroic Mirror Coatings
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Dichroic mirrors are used to combine beams or to split two beams that have different wavelengths. With a long pass mirror, the long wavelengths are transmitted and the short ones reflected. Short-pass mirrors allow the short wavelengths to pass and reflect the long ones. 

Specifications
Angle Of Incidence (AOI): 0 degree
Reflection Wavelength @ 0 Deg AOI: Not Specified
Transmission Wavelength @ 0 Deg AOI: Not Specified
Reflection Wavelength @ 45 Deg AOI: Not Specified
Transmission Wavelength @ 45 Deg AOI: 400 – 700 nm
Data Sheet
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Dichroic Coatings: Selective Light Filtering

Dichroic coatings are optical coatings that selectively transmit and reflect specific wavelengths of light. These coatings are essential in applications requiring precise wavelength separation.

Functionality

Dichroic coatings utilize interference effects to reflect certain wavelengths while transmitting others. The design of the coating determines the specific wavelengths that are reflected or transmitted.

Applications

  • Fluorescence Microscopy: Separates excitation and emission light paths.

  • Optical Filters: Used in imaging systems to isolate specific wavelengths.

  • Laser Systems: Controls the wavelength composition of the output beam.

Incorporating dichroic coatings into optical systems allows for precise control over wavelength selection and separation.

Did You know?

An optical coating is one or more thin layers of material deposited on an optical component, such as a lens or a mirror. The coating alters the way in which the component reflects and transmits light. Dichroic coatings, also known as long pass/short pass coatings, are designed for application where wavelength separation of incident light in transmission and reflection is necessary. In other words, dichroic coatings are used to selectively pass light of a small range of wavelengths, while reflecting all other wavelengths.
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1 - More on AR Coatings
2 - AR Coating Techniques