How do CGHs work?

CGHs are diffractive optics.  The local period of the diffractive structure of a CGH helps us understand how light interacts with it:

• Thinking in terms of rays, the angle of diffraction from a CGH can be calculated using the Grating Equation.
• Thinking in terms of wavefront, CGHs can be considered Contour Maps of wavefront modification.

Learn more about AOM Metrology CGHs here.

Learn more about CGH Applications here.