1:15 PM - 1:30 PM
[13p-B415-1] [Young Scientist Presentation Award Speech] Evaluation of recording and reconstruction characteristics in surface holographic memory without grating overlapping
Keywords:holography, holographic memory, optical memory
Surface holographic memory can be expected as a new optical memory that has different characteristics from conventional holographic memory. However, higher-order diffracted light and degeneracy of gratings caused by Raman-Nath diffraction reduce the signal-to-noise ratio (SNR) of reconstructed signal and multiplicity of hologram. Therefore, we proposed that these noises can be reduced by designing a surface type hologram without grating overlapping, and we showed it from both the numerical simulation and the experimental data.