Holographic optics-based interferometer for real-time testing of phase objects

A simple and cost effective method for making holographic optics-based interferometer, which is suitable for performing optical test studies on phase (transparent) objects in real-time, has been described. The optical arrangement in the proposed method involves a very simple alignment procedure and inexpensive holographic recording material is used in the formation of holographic optical elements. Recording schemes for the formation of holographic optical elements and the related techniques for the realisation of the proposed interferometer along with typical experimental results have been presented.