Recording and reconstruction process in holography

Last time I have discussed the basic definition of holography and hologram. Today I will discuss the process with the help of which hologram is formed or complete picture is recorded:

1. Recording  of hologram. The recording of hologram  is based on the  phenomenon of interference.  It requires a laser source, a plane  mirror or beam splitter, an object and a photographic plate. A laser beam from the laser source is incident on a plane mirror or beam splitter. As the name suggests, the function of the beam splitter is to split the laser beam. One part of splitted beam, after reflection from the beam splitter, strikes on the photographic plate. This  beam is called reference beam. Continue reading “Recording and reconstruction process in holography”