0000000000297271
AUTHOR
E. Jara
Ultrastable Holographic Cyclic Interferometer
ABSTRACT We propose to use an off-axis zone plate, as beam splitter and as beam recombiner, to set a cyclic interferometer. We show that this optical device can be tuned to generate, with high stability, cosinusoidal gratings and/or cosinusoidal zone plates. 1. INTRODUCTION Several modern optical devices incorporate holographically generated optical elements; either for substituting conventional optical elements, or for introducing novel techniques for manipulating light.In particular, in the field of interferometry there are attemps to use diffracting ele ments for testing large optics; without using large beam splitters1"^.The aim of this work is to suggest, and to experimentally verify,…
Holographic interferometer with tunable radial and lateral displacement
The hologram of a point source, together with the real point source, is used to implement a simple holographic interferometer that can be tuned in its radial and/or lateral displacements. We show that our device is easy to use for creating cosinusoidal gratings and zone plates and for optical testing.