Abstract
A method is described which allows the relative phase-shift adjustment of two successively recorded holographic gratings. The residual real-time recording effect in a positive resist was used as a reference hologram for operating an actively stabilized holographic setup and for adjusting both the spatial frequency and the corresponding phase shift of the successively recorded Fourier components to produce a predetermined periodic profile structure in the film. Synthesis of a blazed holographic grating is reported here as an illustration of the possibilities of the process. The method may find use in optical and electrooptical device fabrication requiring accurate spatial frequency and phase adjustment.
© 1988 Optical Society of America
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