Holographic interfermetry based on fulgide film

Holographic interfermetry was realized in a 3-indoly-benzylfulgimide/ PMMA film by using double exposure method and single exposure method for the first time. The structures of an optical wedge and an optical axicon, the rotation angle of the optical wedge and the movement distance of the optical axicon were successfully measured. It is proved that fulgide films can be used as recording medium in holographic interfermetry. As a recording medium in holographic interfermetry, the 3-indoly-benzylfulgimide/PMMA films have many advantages such as low cost, easy to use, rewritable, long life time, and higher signal to noise ratio (with small particles) and higher sensitivity etc. Then using the photoinduced anisotropy property of the 3-indoly-benzylfulgimide/PMMA film, the polarization multiplexing holographic interfermetry was realized, which can be used in particle field's dynamic measurement. This method is told for the first time, and it is proved that using this method, not only the size but also the directions of the objects' movement velocities can be got.