Raicol Crystals

Applications

Wider Spectrum of laser applications

DFG (Difference Frequency Generation)

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Difference-frequency generation (DFG) is a non-linear optical process.

Generation of light with a frequency that is the difference between two other frequencies

This phenomenon is based on the annihilation of two input photons at angular frequencies  and  while, simultaneously, one photon at frequency  is generated. As with any phenomenon in nonlinear optics, this can only occur under conditions where:

• The light is interacting with matter;
• The light has a very high intensity (typically from a pulsed laser).

Difference-frequency generation is a “parametric process”, meaning that the photons satisfy energy conservation, leaving the matter unchanged:

Raicol Crystals provides the following types of crystals for DFG applications:

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