Page Data Multiplexing for Vector Wave Memories Having Polarization Recording Material Doped with Aromatic Ketone Derivative

Abstract

We have developed a new polarization recording material doped with the photodegradative aromatic ketone derivative AK1-H, modified from our conventional material AK1 for vector wave memories (VWMs) to improve signal stability as well as recording characteristics. 10-multiplex page data recording was performed for the first time in VWMs with AK1-H, exhibiting a signal-to-noise ratio of 3 or higher and an estimated symbol error rate of 10-4 or lower for most pages, respectively. VWM media having AK1-H were also found to show a much higher signal stability than those having the conventional material AK1.

A Review of Polarization-Sensitive Materials for Polarization Holography

“…This new type of polarization-sensitive material with AK1 has higher photoinduced birefringence than that with PQ polarization-sensitive materials as photoinitiators are expected to improve the properties of polarized holographic recording materials. In 2013, they developed an improved polarization-sensitive photopolymer material with AK1-H [51]. With optimized photosensitizer AK1-H doped, the conventional material AK1 for vector wave memories (VWMs) was modified to improve signal stability and recording characteristics.…”

Phenanthraquinone-Doped Polymethyl Methacrylate Photopolymer for Holographic Recording

“…In 2013, Ando et al synthesized a polymer PSO 3 and co-doped PMMA with PQ and the polymer PSO 3 [ 124 ]. The experiment showed that a small amount of PSO 3 can greatly improve holographic performance, with the maximum diffraction efficiency reaching 54%.…”