Question

what is the first step of holography??? SCATTERING, INTERFERENCE, DIFFRACTION, DISPERSION which among the all?​

Answer 1

Answer:

Interference

Explanation:

The first step is the recording of the interference pattern formed between the sample beam, which diffusely reflects from the object and the reference beam which is sent directly to the film. These two beams must be coherent and are normally obtained from a single laser by splitting its beam.

Answer 2

The first step of holography is Interference.

• Holography was discovered by Dennis Gabor.
• In this technique, the second waterfront is superimposed on the first wavefront to get the interference pattern.
• The superimposed wavefront is experimental or references wavefront.
• When the second wavefront does not superimposed it gets diffracted to form the original wavefront.
• Holograms are generated by many methods. sometimes it is generated by combining the two wavefronts digitally by using computers.

#SPJ2