What is a CGH?
A computer generated hologram (CGH) is a diffractive structure that is designed on a computer to generate any desired wavefront. A CGH is a binary type of diffractive structure.
- A CGH can also be thought of as a freeform grating (with varying grating period and orientation across its aperture).
- Another way to think of a CGH is as a contour map of wavefront modification.
Learn more about AOM CGHs here.
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